9z-4-7z=-5+0z

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Solution for 9z-4-7z=-5+0z equation:


Simplifying
9z + -4 + -7z = -5 + 0z

Reorder the terms:
-4 + 9z + -7z = -5 + 0z

Combine like terms: 9z + -7z = 2z
-4 + 2z = -5 + 0z

Anything times zero is zero.
-4 + 2z = -5 + 0z

Combine like terms: -5 + 0 = -5
-4 + 2z = -5

Solving
-4 + 2z = -5

Solving for variable 'z'.

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

Add '4' to each side of the equation.
-4 + 4 + 2z = -5 + 4

Combine like terms: -4 + 4 = 0
0 + 2z = -5 + 4
2z = -5 + 4

Combine like terms: -5 + 4 = -1
2z = -1

Divide each side by '2'.
z = -0.5

Simplifying
z = -0.5

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