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$frac{1}{21}$