6z-(-3z)=6z+3z

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Solution for 6z-(-3z)=6z+3z equation:


Simplifying
6z + -1(-3z) = 6z + 3z

Remove parenthesis around (-3z)
6z + -1 * -3z = 6z + 3z

Multiply -1 * -3
6z + 3z = 6z + 3z

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

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

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

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

Combine like terms: 9z + -9z = 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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