6 = 7x + x First, add 7x and x.
6 = 8x
Now, divide both sides by 8.
6/8 = x
Simplify the answer.
3/4 = x.
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-7x + 6 + 7x - 2 = 4
-1.5
9x-4 = 7x+8 9x-7x = 8+4 2x = 12 x = 6
x2+7x=-2x2+6 3x2+7x-6=0 (3x-2)(x+3)=0 3x-2=0 or x+3=0 x=2/3 or x=-3
x2 + 7x + 6 = (x + 6) (x + 1)