Solve the equation. 4(x − 7) − 128 = 9x − 5(x + 6)
Mathematics · High School · Tue Nov 03 2020
Answered on
Lets try and multiply the numbers with the brackets in order to remove them.
4(x-7)=4x-28
-5(x+6)=-5x-30
So now we have:
4x-28-128=9x-5x-30
4x-156=4x-30
Lets put the variables on one side and the numbers on the other side. Every variable or number that will change sides, will have their sign changed from a + into a - and vice versa.
4x-4x = -30+156
0=126
This equation does not have any values because x cancels itself.