8x - 4x + 7 = 9
4x + 7 = 9
4x = 9-7
4x = 2
x = 4/2
x = 1/2
x = 0.5
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8x-7 plus 2x equals 6 plus 5x plus 2?
4x + 7 = 6x -7 14=2x so x = 7 (plus a negative # is simply - that number)
74
If 4x + 7 = 3... then x must equal -1
5