Question

$\frac{3x}{4} - \frac{x}{3} = 15$
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Answer 1

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Explicação passo-a-passo:

$\frac{3x}{4} - \frac{x}{ 3} = 15$

$12( \frac{3x}{4} - \frac{x}{3} ) = 12 \times 15$

$12 \times \frac{3x}{4} - 12 \times \frac{x}{3} = 180$

$3 \times 3x - 4x = 180$

$9x - 4x = 180$

$5x = 180$

$x = 36$