If: x-9 = 6x+7 then x works out as -3.2
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7x + 7 + 6x - 9 = 13x - 2
16x+9 without the rest of the equation, what this equals, I can't solve
0.2x + 6x - 1 = -9 6.2x = -8 x = -1.2903225806451612903225806451613
6x+3y = -9 3y = -6x-9 y = -2x-3 Therefore the perpendicular slope is 1/2
x2 + 6x + 9 = 81 x2 + 6x = 72 x2 + 6x - 72 = 0 (x+12)(x-6) = 0 x= -12, 6 (two solutions)