What is the answer to -7=3+20z-12 ?

The answer to -7=3+20z-12 is z= 1/10

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-7=3+20z-12

- 7 = 3 + 20 z - 12

z = \frac{1}{10}

Decimal Notation

z = 0.1

Solution steps

- 7 = 3 + 20 z - 12

Switch sides

3 + 20 z - 12 = - 7

Group like terms

20 z + 3 - 12 = - 7

Add/Subtract the numbers:

3 - 12 = - 9

20 z - 9 = - 7

Move

9

to the right side

20 z = 2

Divide both sides by

20

z = \frac{1}{10}

2 x^{2} - 8 x + 8 = 0

- 32 = 4 c - 12

5 (8 - 2 x) \leq 2 + 16 (4 + x)

\frac{x + 11}{2} = - 14

\frac{5}{2} \cdot \frac{5}{2}