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Question

Solve the following equation and verify your answer:
3x+52x+7=4

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Solution

3x+52x+7=4or 3x+5=8x+28or 8x+28=3x+5 (After cross multiplication)or8x-3x=5-28or 5x=-23or x=-235 x=-235 is the solution of given equation.Check:Substituting x=-235 in the given equation, we get:L.H.S.=3×-235+52×-235+7=-69+25-46+35=-44-11=4R.H.S.=4 L.H.S.=R.H.S. for x=-235

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