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

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


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

Combine like terms: 7z + 4z = 11z
11z = 9z + -4 + 4z

Reorder the terms:
11z = -4 + 9z + 4z

Combine like terms: 9z + 4z = 13z
11z = -4 + 13z

Solving
11z = -4 + 13z

Solving for variable 'z'.

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

Add '-13z' to each side of the equation.
11z + -13z = -4 + 13z + -13z

Combine like terms: 11z + -13z = -2z
-2z = -4 + 13z + -13z

Combine like terms: 13z + -13z = 0
-2z = -4 + 0
-2z = -4

Divide each side by '-2'.
z = 2

Simplifying
z = 2

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