Помогите! 3(х+7)+16=52 51/(4-у-9)=17

Question

Помогите! 3(х+7)+16=52 51/(4-у-9)=17

Answer 1

1) 3(х+7)+16=52
3x+21=52-16
3x=36-21
3x=15
x=15/3
x=5
 
2) 51/(4-у-9)=17
4y-9=51/17
4y-9=3
4y=3+9
4y=12
y=12/4
y=3