13-3z=9-1z

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Solution for 13-3z=9-1z equation:


Simplifying
13 + -3z = 9 + -1z

Solving
13 + -3z = 9 + -1z

Solving for variable 'z'.

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

Add 'z' to each side of the equation.
13 + -3z + z = 9 + -1z + z

Combine like terms: -3z + z = -2z
13 + -2z = 9 + -1z + z

Combine like terms: -1z + z = 0
13 + -2z = 9 + 0
13 + -2z = 9

Add '-13' to each side of the equation.
13 + -13 + -2z = 9 + -13

Combine like terms: 13 + -13 = 0
0 + -2z = 9 + -13
-2z = 9 + -13

Combine like terms: 9 + -13 = -4
-2z = -4

Divide each side by '-2'.
z = 2

Simplifying
z = 2

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