7z+8z=-9z-7-3z

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Solution for 7z+8z=-9z-7-3z equation:


Simplifying
7z + 8z = -9z + -7 + -3z

Combine like terms: 7z + 8z = 15z
15z = -9z + -7 + -3z

Reorder the terms:
15z = -7 + -9z + -3z

Combine like terms: -9z + -3z = -12z
15z = -7 + -12z

Solving
15z = -7 + -12z

Solving for variable 'z'.

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

Add '12z' to each side of the equation.
15z + 12z = -7 + -12z + 12z

Combine like terms: 15z + 12z = 27z
27z = -7 + -12z + 12z

Combine like terms: -12z + 12z = 0
27z = -7 + 0
27z = -7

Divide each side by '27'.
z = -0.2592592593

Simplifying
z = -0.2592592593

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