3z-7z=3z-7+2z

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Solution for 3z-7z=3z-7+2z equation:


Simplifying
3z + -7z = 3z + -7 + 2z

Combine like terms: 3z + -7z = -4z
-4z = 3z + -7 + 2z

Reorder the terms:
-4z = -7 + 3z + 2z

Combine like terms: 3z + 2z = 5z
-4z = -7 + 5z

Solving
-4z = -7 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
-4z + -5z = -7 + 5z + -5z

Combine like terms: -4z + -5z = -9z
-9z = -7 + 5z + -5z

Combine like terms: 5z + -5z = 0
-9z = -7 + 0
-9z = -7

Divide each side by '-9'.
z = 0.7777777778

Simplifying
z = 0.7777777778

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