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3*x+2 = (-1/5)*x-30 // - (-1/5)*x-30
3*x-((-1/5)*x)+2+30 = 0
3*x+(1/5)*x+2+30 = 0
16/5*x+32 = 0 // - 32
16/5*x = -32 // : 16/5
x = -32/16/5
x = -10
x = -10
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