7z+9-4z=65-4z

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Solution for 7z+9-4z=65-4z equation:


Simplifying
7z + 9 + -4z = 65 + -4z

Reorder the terms:
9 + 7z + -4z = 65 + -4z

Combine like terms: 7z + -4z = 3z
9 + 3z = 65 + -4z

Solving
9 + 3z = 65 + -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.
9 + 3z + 4z = 65 + -4z + 4z

Combine like terms: 3z + 4z = 7z
9 + 7z = 65 + -4z + 4z

Combine like terms: -4z + 4z = 0
9 + 7z = 65 + 0
9 + 7z = 65

Add '-9' to each side of the equation.
9 + -9 + 7z = 65 + -9

Combine like terms: 9 + -9 = 0
0 + 7z = 65 + -9
7z = 65 + -9

Combine like terms: 65 + -9 = 56
7z = 56

Divide each side by '7'.
z = 8

Simplifying
z = 8

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