Question

Помогите пожалуйста.
9x-4x+39=94
и
7y+2y-34=83

Answer 1

9х-4х=94-39
5х=55
х=55:5
х=11

Answer 2

1.
9х-4x+39;
5x+39=94;
5x=94-39;
5x=55;
x=55:5;
x=11.
2.
7y+2y-34;
9y-34=83;
9y=117;
y=117:9;
y=13