Solve the following equations.i. x + 7 = 4 ii. 4p = 12 iii. m – 5

1.	Solve the following equations.i. x + 7 = 4 ii. 4p = 12 iii. m – 5 = 4iv. t/3 = 6
Answer» i. x + 7 = 4 ∴ x + 7 – 7 = 4 – 7 ….(Subtracting 7 from both sides) ∴ x + 0 = -3 ∴ x = -3 ii. 4p = 12 ∴ 4p/4 = 12/4 ….(Dividing both sides by 4) ∴ p = 3 iii. m – 5 = 4 ∴ m – 5 + 5 = 4 + 5 …. (Adding 5 to both sides) ∴ m + 0 = 9 ∴ m = 9 iv. t/3 = 6 ∴ t/3 × 3 = 6 × 3 …. (Multiplying both sides by 3) ∴ t = 18

Solve the following equations.i. x + 7 = 4 ii. 4p = 12 iii. m – 5 = 4iv. t/3 = 6

Answer»

i. x + 7 = 4

∴ x + 7 – 7 = 4 – 7 ….(Subtracting 7 from both sides)

∴ x + 0 = -3

∴ x = -3

ii. 4p = 12

∴ 4p/4 = 12/4

….(Dividing both sides by 4)

∴ p = 3

iii. m – 5 = 4

∴ m – 5 + 5 = 4 + 5

…. (Adding 5 to both sides)

∴ m + 0 = 9

∴ m = 9

iv. t/3 = 6

∴ t/3 × 3 = 6 × 3

…. (Multiplying both sides by 3)

∴ t = 18