7+10+(-6x)=
17-6x
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-6x+3 = -7-5x 7+3 = 6x-5x 10=x
7x + 7 + 6x - 9 = 13x - 2
4x + 7 = 6x -7 14=2x so x = 7 (plus a negative # is simply - that number)
A quadratic equation. If you wish to solve for x, you can do so as follows: -x2 + 6x + 7 = 0 x2 - 6x - 7 = 0 (x - 7)(x + 1) = 0 x ∈ {-1, 7}
If: x-9 = 6x+7 then x works out as -3.2