i. \(\cfrac{p}{4}\) = 9
∴ \(\cfrac{p}{4}\)× 4 = 9 × 4
…. (Multiplying both sides by 4)
∴ \(\cfrac{p\times4}{4\times1}\)= 36
∴ 1p = 36
∴ p = 36
ii. x + 10 = 5
∴ x + 10 – 10 = 5 – 10
…. (Subtracting 10 from both sides)
∴ x + 0 = 5 + (-10)
∴ x = -5
iii. m – 5 = -12
∴m – 5 + 5 = – 12 + 5
…. (Adding 5 to both sides)
∴ m + 0 = -7
∴ m = -7
iv. p + 4 = – 1
∴ p + 4 – 4 = -1 – 4
…. (Subtracting 4 from both sides)
∴ p + 0 = (-1) + (-4)
∴ P = -5