Solve for x
x=25
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\frac{2}{5}x=10
Combine \frac{7}{10}x and -\frac{3}{10}x to get \frac{2}{5}x.
x=10\times \frac{5}{2}
Multiply both sides by \frac{5}{2}, the reciprocal of \frac{2}{5}.
x=\frac{10\times 5}{2}
Express 10\times \frac{5}{2} as a single fraction.
x=\frac{50}{2}
Multiply 10 and 5 to get 50.
x=25
Divide 50 by 2 to get 25.
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