1.

Give the steps you will use to separate the variables and then solve the equation : 7(x – 3) = 28

Answer»

Given 7(x – 3) = 28 

⇒ 7x – 21 = 28 (Distributive property) 

⇒ 7x – 21 + 21 = 28 + 21 (Add 21 on both sides) 

⇒ 7x = 49

⇒ 7x/7 = 49/7 (Divide by 7 on both sides)

⇒ x = 7



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