x2 +6x = 27
x2 + 6x - 27 = 0
x2 + 9x - 3x - 27 = 0
x(x + 9) - 3(x + 9) =0
(x - 3)(x + 9) = 0
So x can equal 3 or -9.
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144
x=4
6x+3=27 6x=24 (subtract 3 from each side) x=4 (divide both sides by 6)
The value of x is -3
x = 7