10z+5=7z-9

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Solution for 10z+5=7z-9 equation:


Simplifying
10z + 5 = 7z + -9

Reorder the terms:
5 + 10z = 7z + -9

Reorder the terms:
5 + 10z = -9 + 7z

Solving
5 + 10z = -9 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
5 + 10z + -7z = -9 + 7z + -7z

Combine like terms: 10z + -7z = 3z
5 + 3z = -9 + 7z + -7z

Combine like terms: 7z + -7z = 0
5 + 3z = -9 + 0
5 + 3z = -9

Add '-5' to each side of the equation.
5 + -5 + 3z = -9 + -5

Combine like terms: 5 + -5 = 0
0 + 3z = -9 + -5
3z = -9 + -5

Combine like terms: -9 + -5 = -14
3z = -14

Divide each side by '3'.
z = -4.666666667

Simplifying
z = -4.666666667

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