What is the answer to -18=15z-9(2z-2) ?

The answer to -18=15z-9(2z-2) is z=12

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-18=15z-9(2z-2)

- 18 = 15 z - 9 (2 z - 2)

z = 12

Solution steps

- 18 = 15 z - 9 (2 z - 2)

Switch sides

15 z - 9 (2 z - 2) = - 18

Expand

- 9 (2 z - 2) : - 18 z + 18

15 z - 18 z + 18 = - 18

Add similar elements:

15 z - 18 z = - 3 z

- 3 z + 18 = - 18

Move

18

to the right side

- 3 z = - 36

Divide both sides by

- 3

z = 12

4 x - 7 (x + 3) = - 36

- 6.5 = p + 3.9

- \frac{5}{4} s = - 9

2 x - 9 = - 7 x

8 = \frac{n}{7}