Question

2 (x-1) = x+2 Solve the linear equation and verify your answer.​

Answer 1

Answer:

2(x-1) = x+2

2x -2 = x+2

2x-x = 2+2

x = 4

Answer 2

Given ⟹

$\bf\red{2(x - 1) = x + 2}$

Solution ⟹

Multiply 2 by (x-1).

$\bf\blue{2x - 2 = x + 2}$

Use Transposition.

$\bf\green{2x - x = 2 + 2}$

Add 2 and 2.

$\bf\pink{2x - x = 4}$

Subtract x from 2x.

$\bf\therefore \: x = 4$

Verification ⟹

Put the value of x.

$\bf\purple{2(4 - 1) = 4 + 2}$

$\bf\orange{2 \times 3 = 4 + 2}$

$\bf\gray{6 = 6}$

Hence, Verified.