8z+6=5z+21

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Solution for 8z+6=5z+21 equation:


Simplifying
8z + 6 = 5z + 21

Reorder the terms:
6 + 8z = 5z + 21

Reorder the terms:
6 + 8z = 21 + 5z

Solving
6 + 8z = 21 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
6 + 8z + -5z = 21 + 5z + -5z

Combine like terms: 8z + -5z = 3z
6 + 3z = 21 + 5z + -5z

Combine like terms: 5z + -5z = 0
6 + 3z = 21 + 0
6 + 3z = 21

Add '-6' to each side of the equation.
6 + -6 + 3z = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 3z = 21 + -6
3z = 21 + -6

Combine like terms: 21 + -6 = 15
3z = 15

Divide each side by '3'.
z = 5

Simplifying
z = 5

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