4z+4=9z-28

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Solution for 4z+4=9z-28 equation:


Simplifying
4z + 4 = 9z + -28

Reorder the terms:
4 + 4z = 9z + -28

Reorder the terms:
4 + 4z = -28 + 9z

Solving
4 + 4z = -28 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
4 + 4z + -9z = -28 + 9z + -9z

Combine like terms: 4z + -9z = -5z
4 + -5z = -28 + 9z + -9z

Combine like terms: 9z + -9z = 0
4 + -5z = -28 + 0
4 + -5z = -28

Add '-4' to each side of the equation.
4 + -4 + -5z = -28 + -4

Combine like terms: 4 + -4 = 0
0 + -5z = -28 + -4
-5z = -28 + -4

Combine like terms: -28 + -4 = -32
-5z = -32

Divide each side by '-5'.
z = 6.4

Simplifying
z = 6.4

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