Question

What is the value of z in the equation 5z − 9 = 36?

4
5
6
9

Answer 1

I dont understand how to work it out, everything I've tried just doesnt seem to work.

Answer 2

Let's solve your equation step-by-step.
5z−9=36

Step 1: Add 9 to both sides.
5z−9+9=36+9
5z=45

Answer 3

dont you have to do inverse operations

Answer 4

Step 2: Divide both sides by 5.

5z/5 = 45/5

z=9

Answer 5

I am still on step 1, wouldnt it be 5z + 9 - 9

Answer 6

Well, the way I do it, I add not subtract

Answer 7

Oh okay

Answer 8

So lets prove that the answer is correct

Answer 9

Plug it into the equation and in the place of the z

Answer 10

(5 x 9) - 9 = ?

Answer 11

What does 5 x 9 equal?

Answer 12

5(9) - 9 = 36
45 - 9 = 36
36 = 36

Answer 13

OMG, i would have never figured it out. Thank You!

Answer 14

No problem