10z-12=-z+21

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Solution for 10z-12=-z+21 equation:


Simplifying
10z + -12 = -1z + 21

Reorder the terms:
-12 + 10z = -1z + 21

Reorder the terms:
-12 + 10z = 21 + -1z

Solving
-12 + 10z = 21 + -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.
-12 + 10z + z = 21 + -1z + z

Combine like terms: 10z + z = 11z
-12 + 11z = 21 + -1z + z

Combine like terms: -1z + z = 0
-12 + 11z = 21 + 0
-12 + 11z = 21

Add '12' to each side of the equation.
-12 + 12 + 11z = 21 + 12

Combine like terms: -12 + 12 = 0
0 + 11z = 21 + 12
11z = 21 + 12

Combine like terms: 21 + 12 = 33
11z = 33

Divide each side by '11'.
z = 3

Simplifying
z = 3

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