7z+7-5z=28-5z

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Solution for 7z+7-5z=28-5z equation:


Simplifying
7z + 7 + -5z = 28 + -5z

Reorder the terms:
7 + 7z + -5z = 28 + -5z

Combine like terms: 7z + -5z = 2z
7 + 2z = 28 + -5z

Solving
7 + 2z = 28 + -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.
7 + 2z + 5z = 28 + -5z + 5z

Combine like terms: 2z + 5z = 7z
7 + 7z = 28 + -5z + 5z

Combine like terms: -5z + 5z = 0
7 + 7z = 28 + 0
7 + 7z = 28

Add '-7' to each side of the equation.
7 + -7 + 7z = 28 + -7

Combine like terms: 7 + -7 = 0
0 + 7z = 28 + -7
7z = 28 + -7

Combine like terms: 28 + -7 = 21
7z = 21

Divide each side by '7'.
z = 3

Simplifying
z = 3

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