9z-5-4z=-7

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


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

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

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

Solving
-5 + 5z = -7

Solving for variable 'z'.

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

Add '5' to each side of the equation.
-5 + 5 + 5z = -7 + 5

Combine like terms: -5 + 5 = 0
0 + 5z = -7 + 5
5z = -7 + 5

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

Divide each side by '5'.
z = -0.4

Simplifying
z = -0.4

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