Question

14(3х-15)=252 6(112-5х)816

Answer 1

$42x - 210 = 252 \ 42x = 252 + 210 = 462 \ x = 462 div 42 = 11$
$672 - 30x = 816 \ 30x = 672 - 816 = - 144 \ x = - 144 div 30 = - 4.8$

Answer 2

Ответ:

1)14(3х-15)=252

42х=252+210

42х=462

х=462÷42

х=11

2)6(112-5х)=816

 672-30х=816

-30х+672=816

-30х=144

х=144:(-30)

х=-4,8