9-11z=12-10z

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Solution for 9-11z=12-10z equation:


Simplifying
9 + -11z = 12 + -10z

Solving
9 + -11z = 12 + -10z

Solving for variable 'z'.

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

Add '10z' to each side of the equation.
9 + -11z + 10z = 12 + -10z + 10z

Combine like terms: -11z + 10z = -1z
9 + -1z = 12 + -10z + 10z

Combine like terms: -10z + 10z = 0
9 + -1z = 12 + 0
9 + -1z = 12

Add '-9' to each side of the equation.
9 + -9 + -1z = 12 + -9

Combine like terms: 9 + -9 = 0
0 + -1z = 12 + -9
-1z = 12 + -9

Combine like terms: 12 + -9 = 3
-1z = 3

Divide each side by '-1'.
z = -3

Simplifying
z = -3

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