Question

Решите уравнения:
1)(820-100):(4x-2)-33=7
2)35*4-60:(5x+2)=135
3)2500:20+6*(x:3-9)=155
4)(35-31)*(x:2-11)+13=29​

Answer 1

1)720÷(4x-2)=40

720=40*(4x-2)

160x=720+80

160x=800