2z+7z=5z-2+2z

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Solution for 2z+7z=5z-2+2z equation:


Simplifying
2z + 7z = 5z + -2 + 2z

Combine like terms: 2z + 7z = 9z
9z = 5z + -2 + 2z

Reorder the terms:
9z = -2 + 5z + 2z

Combine like terms: 5z + 2z = 7z
9z = -2 + 7z

Solving
9z = -2 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
9z + -7z = -2 + 7z + -7z

Combine like terms: 9z + -7z = 2z
2z = -2 + 7z + -7z

Combine like terms: 7z + -7z = 0
2z = -2 + 0
2z = -2

Divide each side by '2'.
z = -1

Simplifying
z = -1

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