7z+9-z=7+5z+5

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


Simplifying
7z + 9 + -1z = 7 + 5z + 5

Reorder the terms:
9 + 7z + -1z = 7 + 5z + 5

Combine like terms: 7z + -1z = 6z
9 + 6z = 7 + 5z + 5

Reorder the terms:
9 + 6z = 7 + 5 + 5z

Combine like terms: 7 + 5 = 12
9 + 6z = 12 + 5z

Solving
9 + 6z = 12 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
9 + 6z + -5z = 12 + 5z + -5z

Combine like terms: 6z + -5z = 1z
9 + 1z = 12 + 5z + -5z

Combine like terms: 5z + -5z = 0
9 + 1z = 12 + 0
9 + 1z = 12

Add '-9' to each side of the equation.
9 + -9 + 1z = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 1z = 12 + -9
1z = 12 + -9

Combine like terms: 12 + -9 = 3
1z = 3

Divide each side by '1'.
z = 3

Simplifying
z = 3

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