7(2x+9)=6+3(x+8)
7(2x+9)=6+3(x+8) simplify
14x + 63 = 6 + 3x + 24 combine like terms
14x + 63 = 30 + 3x subtract 63, 3x from both sides
11x = -33 divide both sides by 11
x = -3