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Anonymous
9x-4 = 7x+8
9x-7x = 8+4
2x = 12
x = 6
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7x-4=9x+10-14=2xx=-7
2x+3=9x 3=9x-2x 3=7x x=3/7
10 + 9x
7x - 9x = -2x
9x squared plus 16 = 0 factored is plus and minus 4/3 i.