Q7 of 80 Page 45

Solve the following equation:

3x + 4 = 5 (x–2)

Given equation: 3x + 4 = 5 (x–2)

⇒ 3x + 4 = 5x – 10 (Removing bracket)


⇒ 3x – 5x = -10 – 4 (Transposing 5x to LHS and 4 to RHS)


-2x = -14


⇒ x = (Transposing -2 to RHS)


x = 7


∴ The solution of 3x + 4 = 5 (x–2) is x = 7.


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