7+4z-4=7z+9-2z

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Solution for 7+4z-4=7z+9-2z equation:


Simplifying
7 + 4z + -4 = 7z + 9 + -2z

Reorder the terms:
7 + -4 + 4z = 7z + 9 + -2z

Combine like terms: 7 + -4 = 3
3 + 4z = 7z + 9 + -2z

Reorder the terms:
3 + 4z = 9 + 7z + -2z

Combine like terms: 7z + -2z = 5z
3 + 4z = 9 + 5z

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

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

Combine like terms: 5z + -5z = 0
3 + -1z = 9 + 0
3 + -1z = 9

Add '-3' to each side of the equation.
3 + -3 + -1z = 9 + -3

Combine like terms: 3 + -3 = 0
0 + -1z = 9 + -3
-1z = 9 + -3

Combine like terms: 9 + -3 = 6
-1z = 6

Divide each side by '-1'.
z = -6

Simplifying
z = -6

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