Resolver 300 * 100/(100 + x) + 300 * 100/(100 - x) = 640 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$300\times\frac{100}{100+x}+300\times\frac{100}{100-x}=640$$