-9x - 3 - 3x = 4 + x
combine the -9x and -3x
-12x - 3 = 4 + x
subtract x from each side
-13x - 3 = 4
add 3 to each side
-13x = 7
divide both sides by -13
x = -7/13
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9x + 3 - 6x - 2 = 3x + 1
6x2 + 9x = 0 3x(2x + 3) = 0 3x = 0 or 2x + 3 = 0 x = 0 or x = -3/2
9x+3
3 / 9x+63 / 3(3x+2)1 / 3x+2
(9x + 12) / 3 = 3x+4 ■