4z+30=7z

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Solution for 4z+30=7z equation:


Simplifying
4z + 30 = 7z

Reorder the terms:
30 + 4z = 7z

Solving
30 + 4z = 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.
30 + 4z + -7z = 7z + -7z

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

Combine like terms: 7z + -7z = 0
30 + -3z = 0

Add '-30' to each side of the equation.
30 + -30 + -3z = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -3z = 0 + -30
-3z = 0 + -30

Combine like terms: 0 + -30 = -30
-3z = -30

Divide each side by '-3'.
z = 10

Simplifying
z = 10

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