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

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


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

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

Combine like terms: 7 + -2 = 5
5 + 3z = 7z + 9 + -3z

Reorder the terms:
5 + 3z = 9 + 7z + -3z

Combine like terms: 7z + -3z = 4z
5 + 3z = 9 + 4z

Solving
5 + 3z = 9 + 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.
5 + 3z + -4z = 9 + 4z + -4z

Combine like terms: 3z + -4z = -1z
5 + -1z = 9 + 4z + -4z

Combine like terms: 4z + -4z = 0
5 + -1z = 9 + 0
5 + -1z = 9

Add '-5' to each side of the equation.
5 + -5 + -1z = 9 + -5

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

Combine like terms: 9 + -5 = 4
-1z = 4

Divide each side by '-1'.
z = -4

Simplifying
z = -4

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