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2x2 + 9x + 10
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3 = 2x + 5 -5 -5 -2 = 2x ---------- 2 x = -1
2x+2=x+5 x=3
2x + 7 + 5 = 2x + 12 = 2*x + 2*6 = 2*(x+6)
18x + 5
2x+3 = 3x+5 2x-3x = 5-3 -x = 2 x = -2