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Question

Solve the following equation and verify your answer:
x+3x-3+x+2x-2=2

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Solution

x+3x-3+x+2x-2=2or x+3x-3=2-x+2x-2or x+3x-3=2x-4-x-2x-2or x+3x-3=x-6x-2or x2-2x+3x-6=x2-3x-6x+18 [After cross multiplication]or x2-x2+x+9x=18+6or 10x=24or x=2410or x=125Thus, x=125 is the solution of the given equation.Check:Substituting x=125 in the given equation, we get:L.H.S.=125+3125-3+125+2125-2=12+1512-15+12+1012-10=27-3+222=54-66-6=-12-6=2R.H.S.=2 L.H.S.=R.H.S. for x=125

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