Question

3x/10-15=57/10-3x/5
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Answer 1

Resposta:

$\frac{3x}{10} - 15 = \frac{57}{10} - \frac{3x}{5}$

$\frac{3x - 150 = 57 - 9x}{10}$

$\frac{3x + 9x = 57 + 150}{10}$

$\frac{12x = 207}{10\\}$

12x = 207 × 10

12x = 2070

x = $\frac{2070}{12}$

x = $\frac{1035}{6}$

x = $\frac{345}{3\\}$

x = 115