Respuesta :

Kaikerscupcake
Hey there! :D

7x-2(x-10)=40

Distribute the -2. 

-2*x= -2x

-2*-10=20

7x-2x+20=40

5x+20=40

Subtract 20 on both sides.

5x=20

Divide by 5 into both sides.

x=4

I hope this helps!
~kaikers
x=4



............................