Question

помогите срочно!
2x+5=7x-40
2-3(x-2)=6-7x
3x-5(2+x)=6-3x

Answer 1

2x+5=7x-40
5x = 45
x=9

2-3(x-2)=6-7x
2-3x+6=6-7x
4x=-2
x=-0,5

3x-5(2+x)=6-3x
3x-10-5x=6-3x
x=16