Question

Решите уравнение:
-7/8(х+2/49)=0,5(2х-4)

Answer 1

$- \frac{7}{8} (x + \frac{2}{49} ) = 0.5(2x - 4) \\ \\ - \frac{7}{8} x - \frac{1}{28 } = x - 2 \\ \\ - 49x - 2 = 56x - 112 \\ - 49x - 56x = - 112 + 2 \\ - 105x = - 110 \div - 105 \\ x = \frac{22}{21}$

Answer 2

-$\frac{7}{8}$ (x+$\frac{2}{49}$) = 0,5 (2x-4)

-$\frac{7}{8}x$-$\frac{1}{28}$ = x - 2

-$\frac{15}{8}x$ = -$\frac{55}{28}$ | × (-1)

$\frac{15}{8}x$ = $\frac{55}{28}$

x = $\frac{55}{28}$ ÷ $\frac{15}{8}$

x = $\frac{55}{28}$ × $\frac{8}{15}$

x = $\frac{22}{21}$

x = 1$\frac{1}{21}$