8z+18=4z+9

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Solution for 8z+18=4z+9 equation:


Simplifying
8z + 18 = 4z + 9

Reorder the terms:
18 + 8z = 4z + 9

Reorder the terms:
18 + 8z = 9 + 4z

Solving
18 + 8z = 9 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
18 + 8z + -4z = 9 + 4z + -4z

Combine like terms: 8z + -4z = 4z
18 + 4z = 9 + 4z + -4z

Combine like terms: 4z + -4z = 0
18 + 4z = 9 + 0
18 + 4z = 9

Add '-18' to each side of the equation.
18 + -18 + 4z = 9 + -18

Combine like terms: 18 + -18 = 0
0 + 4z = 9 + -18
4z = 9 + -18

Combine like terms: 9 + -18 = -9
4z = -9

Divide each side by '4'.
z = -2.25

Simplifying
z = -2.25

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