Решить 1)5х+7+15+13. 2) у+21+3у+19

Question

Решить
1)5х+7+15+13.
2) у+21+3у+19

Answer 1

1) 5x+7+15+13=
5x+35
x= 35:5
x=7
2)y+21+3y+19
y+3y+21+19
4y+40
y=10

Answer 2

1 . -7
2. -10
1. 5x+7+15+13
5x=-7-15-13
5x=-35
x=-35÷5
x=7
2 . y+21+3y+19
y+3y=-21-19
4y=-40
y=-40÷4
y=-10