Question

решите уравнение х-57=535, 6,25x-2,5x=22,5

Answer 1

https://photomath.net/s/9VX5ed
https://photomath.net/s/BA16Xn

Answer 2

$x - frac{5}{7} = frac{5}{35}$
$x = frac{5}{35} + frac{5}{7}$
$x = frac{5}{35} + frac{25}{35}$
$x = frac{30}{35}$
2)
6.25х-2.5х=22.5
3.75х = 22.5
х = 22.5:3.75
х = 6