3z-7z+2=-30

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Solution for 3z-7z+2=-30 equation:


Simplifying
3z + -7z + 2 = -30

Reorder the terms:
2 + 3z + -7z = -30

Combine like terms: 3z + -7z = -4z
2 + -4z = -30

Solving
2 + -4z = -30

Solving for variable 'z'.

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

Add '-2' to each side of the equation.
2 + -2 + -4z = -30 + -2

Combine like terms: 2 + -2 = 0
0 + -4z = -30 + -2
-4z = -30 + -2

Combine like terms: -30 + -2 = -32
-4z = -32

Divide each side by '-4'.
z = 8

Simplifying
z = 8

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