Помагите 13•х+15•х-24=60 18•у-7•у-10=12

Question

Помагите
13•х+15•х-24=60
18•у-7•у-10=12

Answer 1

13x + 15x - 24 = 60 
28x = 84
x=3

18y - 7y -10 = 12 
11 y = 22
y = 2

Answer 2

13•х+15•х-24=60
28х = 60 + 24 = 84
х = 84 ÷ 28 = 3

18•у-7•у-10=12
11у = 12 + 10 = 22
у = 22 ÷ 11 = 2