Answer:
x = 2
Explanation:
given
28 - (3x + 4) = 2(x + 6) + x ← distribute parenthesis on both sides
28 - 3x - 4 = 2x + 12 + x ← collect like terms on both sides
24 - 3x = 3x + 12 ( subtract 3x from both sides )
24 - 6x = 12 ( subtract 24 from both sides )
- 6x = - 12 ( divide both sides by - 6 )
x =
, that is
x = 2