6-13=z

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Solution for 6-13=z equation:


Simplifying
6 + -13 = z

Combine like terms: 6 + -13 = -7
-7 = z

Solving
-7 = z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-7 + -1z = z + -1z

Combine like terms: z + -1z = 0
-7 + -1z = 0

Add '7' to each side of the equation.
-7 + 7 + -1z = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1z = 0 + 7
-1z = 0 + 7

Combine like terms: 0 + 7 = 7
-1z = 7

Divide each side by '-1'.
z = -7

Simplifying
z = -7

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