6z+9-7=4z+12

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Solution for 6z+9-7=4z+12 equation:


Simplifying
6z + 9 + -7 = 4z + 12

Reorder the terms:
9 + -7 + 6z = 4z + 12

Combine like terms: 9 + -7 = 2
2 + 6z = 4z + 12

Reorder the terms:
2 + 6z = 12 + 4z

Solving
2 + 6z = 12 + 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.
2 + 6z + -4z = 12 + 4z + -4z

Combine like terms: 6z + -4z = 2z
2 + 2z = 12 + 4z + -4z

Combine like terms: 4z + -4z = 0
2 + 2z = 12 + 0
2 + 2z = 12

Add '-2' to each side of the equation.
2 + -2 + 2z = 12 + -2

Combine like terms: 2 + -2 = 0
0 + 2z = 12 + -2
2z = 12 + -2

Combine like terms: 12 + -2 = 10
2z = 10

Divide each side by '2'.
z = 5

Simplifying
z = 5

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