Question

2.3y+31+2.5=67 решите уровнение

Answer 1

2.3у=67-31-2.5
2.3у=33.5
у=33.5:2.3
у=15

Answer 2

$2.3y+31+2.5=67 \ 2.3y+33.5=67\2.3y=67-33.5\2.3y=33.5\y= frac{33.5}{2.3} \\y= frac{335}{23} =14 frac{13}{23}$