7z+5-2z=30

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Solution for 7z+5-2z=30 equation:


Simplifying
7z + 5 + -2z = 30

Reorder the terms:
5 + 7z + -2z = 30

Combine like terms: 7z + -2z = 5z
5 + 5z = 30

Solving
5 + 5z = 30

Solving for variable 'z'.

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

Add '-5' to each side of the equation.
5 + -5 + 5z = 30 + -5

Combine like terms: 5 + -5 = 0
0 + 5z = 30 + -5
5z = 30 + -5

Combine like terms: 30 + -5 = 25
5z = 25

Divide each side by '5'.
z = 5

Simplifying
z = 5

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