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

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


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

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

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

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

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

Solving
3 + 5z = 9 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
3 + 5z + -2z = 9 + 2z + -2z

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

Combine like terms: 2z + -2z = 0
3 + 3z = 9 + 0
3 + 3z = 9

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

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

Combine like terms: 9 + -3 = 6
3z = 6

Divide each side by '3'.
z = 2

Simplifying
z = 2

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