8z+7z=z-1-4z

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Solution for 8z+7z=z-1-4z equation:


Simplifying
8z + 7z = z + -1 + -4z

Combine like terms: 8z + 7z = 15z
15z = z + -1 + -4z

Reorder the terms:
15z = -1 + z + -4z

Combine like terms: z + -4z = -3z
15z = -1 + -3z

Solving
15z = -1 + -3z

Solving for variable 'z'.

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

Add '3z' to each side of the equation.
15z + 3z = -1 + -3z + 3z

Combine like terms: 15z + 3z = 18z
18z = -1 + -3z + 3z

Combine like terms: -3z + 3z = 0
18z = -1 + 0
18z = -1

Divide each side by '18'.
z = -0.05555555556

Simplifying
z = -0.05555555556

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