(a) 3 equations starting with x = 2. (i) x = 2 Multiplying both sides by 10, 10x = 20 Adding 2 both sides 10x + 2 = 20+2 = 10x+2 = 22 (ii) x = 2 Multiplying both sides by 5 5x = 10 Subtracting 3 from both sides 5x-3 = 10-3 = 5x-3 = 7 (iii) x = 2 Dividing both sides by 5 x/5 = 2/5 (b) 3 equations staRead more
(a) 3 equations starting with x = 2.
(i) x = 2
Multiplying both sides by 10,
10x = 20
Adding 2 both sides
10x + 2 = 20+2 = 10x+2 = 22
(ii) x = 2
Multiplying both sides by 5
5x = 10
Subtracting 3 from both sides
5x-3 = 10-3 = 5x-3 = 7
(iii) x = 2
Dividing both sides by 5
x/5 = 2/5
(b) 3 equations starting with x = -2.
(i) x = -2
Multiplying both sides by 3
3x=-6
(ii) x = -2
Multiplying both sides by 3
3x=-6
Adding 7 to both sides
3x+7 = -6+7 = 3x+7 =1
2(x+4) = 12 ⇒ x+4 = 12/2 ⇒ x+4 = 6 ⇒ x = 6-4 ⇒ x = 2 Class 7 Maths Chapter 4 Exercise 4.3 for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
2(x+4) = 12
⇒ x+4 = 12/2
⇒ x+4 = 6
⇒ x = 6-4
⇒ x = 2
10p = 100 ⇒ 10p/10 = 100/10 [Dividing both sides by 10] ⇒ p=0 Class 7 Maths Chapter 4 Exercise 4.2 for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
10p = 100
⇒ 10p/10 = 100/10 [Dividing both sides by 10]
⇒ p=0
(a) Construct 3 equations starting with x =2. (b) Construct 3 equations starting with x= -2.
(a) 3 equations starting with x = 2. (i) x = 2 Multiplying both sides by 10, 10x = 20 Adding 2 both sides 10x + 2 = 20+2 = 10x+2 = 22 (ii) x = 2 Multiplying both sides by 5 5x = 10 Subtracting 3 from both sides 5x-3 = 10-3 = 5x-3 = 7 (iii) x = 2 Dividing both sides by 5 x/5 = 2/5 (b) 3 equations staRead more
(a) 3 equations starting with x = 2.
(i) x = 2
Multiplying both sides by 10,
10x = 20
Adding 2 both sides
10x + 2 = 20+2 = 10x+2 = 22
(ii) x = 2
Multiplying both sides by 5
5x = 10
Subtracting 3 from both sides
5x-3 = 10-3 = 5x-3 = 7
(iii) x = 2
Dividing both sides by 5
x/5 = 2/5
(b) 3 equations starting with x = -2.
(i) x = -2
Multiplying both sides by 3
3x=-6
(ii) x = -2
Multiplying both sides by 3
3x=-6
Adding 7 to both sides
3x+7 = -6+7 = 3x+7 =1
Class 7 Maths Chapter 4 Exercise 4.3
for more answers vist to:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
Solve the following equations: 4 = 5 (p-2)
4 = 5 (p-2) ⇒ 4 = 5xp-5x2 ⇒ 4 = 5p - 10 ⇒ 5p-10 = 4 ⇒ 5p = 4 + 10 ⇒ 5p = 14 ⇒ p=14/5 Class 7 Maths Chapter 4 Exercise 4.3 for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
4 = 5 (p-2)
⇒ 4 = 5xp-5×2
⇒ 4 = 5p – 10
⇒ 5p-10 = 4
⇒ 5p = 4 + 10
⇒ 5p = 14
⇒ p=14/5
Class 7 Maths Chapter 4 Exercise 4.3
for more answers vist to:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
Solve the following equations: 2(x+4) = 12
2(x+4) = 12 ⇒ x+4 = 12/2 ⇒ x+4 = 6 ⇒ x = 6-4 ⇒ x = 2 Class 7 Maths Chapter 4 Exercise 4.3 for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
2(x+4) = 12
⇒ x+4 = 12/2
⇒ x+4 = 6
⇒ x = 6-4
⇒ x = 2
Class 7 Maths Chapter 4 Exercise 4.3
for more answers vist to:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
Solve the following equations: 2y+5/2 = 37/2
2y+5/2 = 37/2 ⇒ 2y = 37/2 - 5/2 ⇒ 2y = 37-5/2 ⇒ 2y =32/2 ⇒ 2y = 16 ⇒ y = 16/2 ⇒ y= 8 Class 7 Maths Chapter 4 Exercise 4.3 for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
2y+5/2 = 37/2
⇒ 2y = 37/2 – 5/2
⇒ 2y = 37-5/2
⇒ 2y =32/2
⇒ 2y = 16
⇒ y = 16/2
⇒ y= 8
Class 7 Maths Chapter 4 Exercise 4.3
for more answers vist to:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
Solve the following equation: 10p = 100
10p = 100 ⇒ 10p/10 = 100/10 [Dividing both sides by 10] ⇒ p=0 Class 7 Maths Chapter 4 Exercise 4.2 for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/
10p = 100
⇒ 10p/10 = 100/10 [Dividing both sides by 10]
⇒ p=0
Class 7 Maths Chapter 4 Exercise 4.2
for more answers vist to:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/