3z+9=7+3z+6-z

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Solution for 3z+9=7+3z+6-z equation:


Simplifying
3z + 9 = 7 + 3z + 6 + -1z

Reorder the terms:
9 + 3z = 7 + 3z + 6 + -1z

Reorder the terms:
9 + 3z = 7 + 6 + 3z + -1z

Combine like terms: 7 + 6 = 13
9 + 3z = 13 + 3z + -1z

Combine like terms: 3z + -1z = 2z
9 + 3z = 13 + 2z

Solving
9 + 3z = 13 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
9 + 3z + -2z = 13 + 2z + -2z

Combine like terms: 3z + -2z = 1z
9 + 1z = 13 + 2z + -2z

Combine like terms: 2z + -2z = 0
9 + 1z = 13 + 0
9 + 1z = 13

Add '-9' to each side of the equation.
9 + -9 + 1z = 13 + -9

Combine like terms: 9 + -9 = 0
0 + 1z = 13 + -9
1z = 13 + -9

Combine like terms: 13 + -9 = 4
1z = 4

Divide each side by '1'.
z = 4

Simplifying
z = 4

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