5[z-(6z+18)+3]=5(z+3)

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Solution for 5[z-(6z+18)+3]=5(z+3) equation:


Simplifying
5[z + -1(6z + 18) + 3] = 5(z + 3)

Reorder the terms:
5[z + -1(18 + 6z) + 3] = 5(z + 3)
5[z + (18 * -1 + 6z * -1) + 3] = 5(z + 3)
5[z + (-18 + -6z) + 3] = 5(z + 3)

Reorder the terms:
5[-18 + 3 + z + -6z] = 5(z + 3)

Combine like terms: -18 + 3 = -15
5[-15 + z + -6z] = 5(z + 3)

Combine like terms: z + -6z = -5z
5[-15 + -5z] = 5(z + 3)
[-15 * 5 + -5z * 5] = 5(z + 3)
[-75 + -25z] = 5(z + 3)

Reorder the terms:
-75 + -25z = 5(3 + z)
-75 + -25z = (3 * 5 + z * 5)
-75 + -25z = (15 + 5z)

Solving
-75 + -25z = 15 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
-75 + -25z + -5z = 15 + 5z + -5z

Combine like terms: -25z + -5z = -30z
-75 + -30z = 15 + 5z + -5z

Combine like terms: 5z + -5z = 0
-75 + -30z = 15 + 0
-75 + -30z = 15

Add '75' to each side of the equation.
-75 + 75 + -30z = 15 + 75

Combine like terms: -75 + 75 = 0
0 + -30z = 15 + 75
-30z = 15 + 75

Combine like terms: 15 + 75 = 90
-30z = 90

Divide each side by '-30'.
z = -3

Simplifying
z = -3

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