Question

Qual o x da equação 10x -19:21 e 2x -7:-10

Answer 1

Resposta:

$\frac{210x-19}{21}$

$2x+\frac{7}{10}$

Explicação passo a passo:

$10x-\frac{19}{21}$

$=\frac{10x\cdot \:21}{21}-\frac{19}{21}$

$=\frac{10x\cdot \:21-19}{21}$

$=\frac{210x-19}{21}$

$2x-\frac{7}{-10}$

$=2x-\left(-\frac{7}{10}\right)$

$=2x+\frac{7}{10}$