Question

4x+4=x+5
5x+3(3x+7)=35
плизз помогите

Answer 1

1)4x+4=x+5
4x-x = 5-4
3x =1
x=1/3
2)5x+3(3x+7)=35
5x+9x+21=35
14x=35-21
14x=14
x=1

Answer 2

2)5x+3(3x+7)=35
5x+9x+21=35
14x=35-21
14x=14
x=1