9+7z-2=7z+13-3z

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Solution for 9+7z-2=7z+13-3z equation:


Simplifying
9 + 7z + -2 = 7z + 13 + -3z

Reorder the terms:
9 + -2 + 7z = 7z + 13 + -3z

Combine like terms: 9 + -2 = 7
7 + 7z = 7z + 13 + -3z

Reorder the terms:
7 + 7z = 13 + 7z + -3z

Combine like terms: 7z + -3z = 4z
7 + 7z = 13 + 4z

Solving
7 + 7z = 13 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
7 + 7z + -4z = 13 + 4z + -4z

Combine like terms: 7z + -4z = 3z
7 + 3z = 13 + 4z + -4z

Combine like terms: 4z + -4z = 0
7 + 3z = 13 + 0
7 + 3z = 13

Add '-7' to each side of the equation.
7 + -7 + 3z = 13 + -7

Combine like terms: 7 + -7 = 0
0 + 3z = 13 + -7
3z = 13 + -7

Combine like terms: 13 + -7 = 6
3z = 6

Divide each side by '3'.
z = 2

Simplifying
z = 2

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