6+2z-1=7z+21-3z

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Solution for 6+2z-1=7z+21-3z equation:


Simplifying
6 + 2z + -1 = 7z + 21 + -3z

Reorder the terms:
6 + -1 + 2z = 7z + 21 + -3z

Combine like terms: 6 + -1 = 5
5 + 2z = 7z + 21 + -3z

Reorder the terms:
5 + 2z = 21 + 7z + -3z

Combine like terms: 7z + -3z = 4z
5 + 2z = 21 + 4z

Solving
5 + 2z = 21 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
5 + 2z + -4z = 21 + 4z + -4z

Combine like terms: 2z + -4z = -2z
5 + -2z = 21 + 4z + -4z

Combine like terms: 4z + -4z = 0
5 + -2z = 21 + 0
5 + -2z = 21

Add '-5' to each side of the equation.
5 + -5 + -2z = 21 + -5

Combine like terms: 5 + -5 = 0
0 + -2z = 21 + -5
-2z = 21 + -5

Combine like terms: 21 + -5 = 16
-2z = 16

Divide each side by '-2'.
z = -8

Simplifying
z = -8

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