Question

а)70х-12=50х
р)-17х+60=-400.

Answer 1

$70x-12=50x$
$70x-50x=12$
$20x=12$
$x = frac{12}{20}$
$x = frac{6}{10}$
$x =0,6$

$-17x+60=-400$
$-17x = -400-60$
$-17x=-460$
$17x=460$
$x = frac{460}{17}$
$x = 27 frac{1}{17}$