Question

solve the following equations and check your answers. (2z - 7) -3(3z+8) = 4z-9​

Answer 1

Step-by-step explanation:

2z-7-9z-24=4z-9

-7z-31=4z-9

-7z-4z=-9+31

-11z=22

Answer 2

(2z - 7) -3(3z + 8) = 4z - 9

2z - 7 -9z -24 = 4z - 9

-7z - 31 = 4z - 9

-7z - 4z = - 9 + 31

- 11z = 22

z = 22

-11

z = - 2

Check

(2z - 7) -3(3z + 8) = 4z - 9

(2(-2) - 7) -3(3(-2) + 8) = 4(-2) - 9

(-4 - 7) -3(2) = -8 - 9

-11 - 6 = -17

-17 = -17 Verify