1.

Solve: 3k + 4 = 28

Answer»

3k + 4 = 28 

⇒ 3k + 4 – 4 = 28 – 4 (Add both sides ‘- 4’) 

⇒ 3k = 24

⇒ 3k/3 = 24/4 (Divide both sides by ‘3’)

⇒ k = 8

Check: 

Substitute k = 8 in the given equation. 

LHS = 3k + 4 

= 3(8) + 4 

= 24 + 4 = 28 = RHS 

Hence verified.



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