-7z-3+9z=1+2z-4

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Solution for -7z-3+9z=1+2z-4 equation:


Simplifying
-7z + -3 + 9z = 1 + 2z + -4

Reorder the terms:
-3 + -7z + 9z = 1 + 2z + -4

Combine like terms: -7z + 9z = 2z
-3 + 2z = 1 + 2z + -4

Reorder the terms:
-3 + 2z = 1 + -4 + 2z

Combine like terms: 1 + -4 = -3
-3 + 2z = -3 + 2z

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

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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