Question

What is the value of z in the equation 3z + 5 = 4z − 8?
A. -13
B. -1
C. 1
D. 13

HEELLLLPPP

Answer 1

Solve for z, just like previous question, move all the terms with z on the left and just the numbers on the right.

Answer 2

When you're moving things around, you want to use the opposite operation of what already exists, so lets first move the 4z, it's actually +4z, so what can we do to eliminate it on the right and move it to the left?

Answer 3

the z ?

Answer 4

The whole thing, 4z

Answer 5

so the answer is 1 ?

Answer 6

@iambatman

Answer 7

What?

Answer 8

How did you get 1

Answer 9

D. 13
Move 3z to the right hand side and combine the z terms.
Move -8 to the left hand side and combine terms.
13 = z

Answer 10

thank you @robtobey

Answer 11

Your welcome.

Answer 12

Yay for doing all the work