4z-11=-21+9z

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Solution for 4z-11=-21+9z equation:


Simplifying
4z + -11 = -21 + 9z

Reorder the terms:
-11 + 4z = -21 + 9z

Solving
-11 + 4z = -21 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
-11 + 4z + -9z = -21 + 9z + -9z

Combine like terms: 4z + -9z = -5z
-11 + -5z = -21 + 9z + -9z

Combine like terms: 9z + -9z = 0
-11 + -5z = -21 + 0
-11 + -5z = -21

Add '11' to each side of the equation.
-11 + 11 + -5z = -21 + 11

Combine like terms: -11 + 11 = 0
0 + -5z = -21 + 11
-5z = -21 + 11

Combine like terms: -21 + 11 = -10
-5z = -10

Divide each side by '-5'.
z = 2

Simplifying
z = 2

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