Question

Решите уравнения 10х-х=990 .3у+17+3у+46=99

Answer 1

10х-x=990
9x=990
x=990/9
x=110

3y+17+3y+46=99
6y+63=99
6y=99-63
6y=36
y=36/6
y=6

Answer 2

спасибо

Answer 3

10x-x=990;
9x=990;
x=990/9=110

6y=99-17-46=36;
6y=36;
y=36/6=6