26÷2+13+2x=4x2÷2x+72
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26/2+13+2x=4 x 2x+72
52/2+2x=4/x+72
26+2x=4/x+72
2x-4/x=72-26
2x*x-4/x=46
2x-4=46
2x=42
x=42/2
x=21 ans
52/2+2x=4/x+72
26+2x=4/x+72
2x-4/x=72-26
2x*x-4/x=46
2x-4=46
2x=42
x=42/2
x=21 ans
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