20z-(-9)=25

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Solution for 20z-(-9)=25 equation: 


Simplifying
20z + -1(-9) = 25

Multiply -1 * -9
20z + 9 = 25

Reorder the terms:
9 + 20z = 25

Solving
9 + 20z = 25

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + 20z = 25 + -9

Combine like terms: 9 + -9 = 0
0 + 20z = 25 + -9
20z = 25 + -9

Combine like terms: 25 + -9 = 16
20z = 16

Divide each side by '20'.
z = 0.8

Simplifying
z = 0.8

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