8-7z+2z=20+5

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Solution for 8-7z+2z=20+5 equation:


Simplifying
8 + -7z + 2z = 20 + 5

Combine like terms: -7z + 2z = -5z
8 + -5z = 20 + 5

Combine like terms: 20 + 5 = 25
8 + -5z = 25

Solving
8 + -5z = 25

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + -5z = 25 + -8

Combine like terms: 8 + -8 = 0
0 + -5z = 25 + -8
-5z = 25 + -8

Combine like terms: 25 + -8 = 17
-5z = 17

Divide each side by '-5'.
z = -3.4

Simplifying
z = -3.4

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