-x - 7 = -6x + 8 -----> move the therm with x from the right side to the left with the opposite sign.
Move the constant term -7 from the left to the right with the opposite sign.
You can put this solution on YOUR website! -(x+7) = -6x +8
distribute the - over (x+7)
-x -7 = -6x + 8
add 6x to both sides of =
5x -7 = 8
add 7 to both sides of =
5x = 15
x = 3
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check answer in original equation
-(3+7) = -6(3) + 8
-10 = -18 + 8
-10 = -10
answer checks