3z-7=5+z

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Solution for 3z-7=5+z equation:


Simplifying
3z + -7 = 5 + z

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

Solving
-7 + 3z = 5 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-7 + 3z + -1z = 5 + z + -1z

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

Combine like terms: z + -1z = 0
-7 + 2z = 5 + 0
-7 + 2z = 5

Add '7' to each side of the equation.
-7 + 7 + 2z = 5 + 7

Combine like terms: -7 + 7 = 0
0 + 2z = 5 + 7
2z = 5 + 7

Combine like terms: 5 + 7 = 12
2z = 12

Divide each side by '2'.
z = 6

Simplifying
z = 6

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