Question

;(x+1)" alt="38+7·(x-3)=9·(x+1)" align="absmiddle" class="latex-formula">

Answer 1

$38 + 7x - 21 = 9x + 9$

Combine like terms.

$17 + 7x = 9x + 9$

Eliminate a x.

$17 = 2x + 9$

$8 = 2x$

$x = 4$

Answer 2

38 + 7x - 21 = 9x + 9

7x + 17 = 9x + 9

Subtract both sides 9

7x + 17 - 9 = 9x + 9 - 9

7x + 8 = 9x

Subtract sides 7x

7x - 7x + 8 = 9x - 7x

8 = 2x

Divide both sides by 2

8 ÷ 2 = 2x ÷ 2

x = 4