4z-4=3z+9

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Solution for 4z-4=3z+9 equation:


Simplifying
4z + -4 = 3z + 9

Reorder the terms:
-4 + 4z = 3z + 9

Reorder the terms:
-4 + 4z = 9 + 3z

Solving
-4 + 4z = 9 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
-4 + 4z + -3z = 9 + 3z + -3z

Combine like terms: 4z + -3z = 1z
-4 + 1z = 9 + 3z + -3z

Combine like terms: 3z + -3z = 0
-4 + 1z = 9 + 0
-4 + 1z = 9

Add '4' to each side of the equation.
-4 + 4 + 1z = 9 + 4

Combine like terms: -4 + 4 = 0
0 + 1z = 9 + 4
1z = 9 + 4

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

Divide each side by '1'.
z = 13

Simplifying
z = 13

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