Question

Solve the following equations.

i. x + 7 = 4 

ii. 4p = 12 

iii. m – 5 = 4

iv. t/3 = 6

Answer 1

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