3x+8-z=7

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


Simplifying
3x + 8 + -1z = 7

Reorder the terms:
8 + 3x + -1z = 7

Solving
8 + 3x + -1z = 7

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + 3x + -8 + -1z = 7 + -8

Reorder the terms:
8 + -8 + 3x + -1z = 7 + -8

Combine like terms: 8 + -8 = 0
0 + 3x + -1z = 7 + -8
3x + -1z = 7 + -8

Combine like terms: 7 + -8 = -1
3x + -1z = -1

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

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

Divide each side by '3'.
x = -0.3333333333 + 0.3333333333z

Simplifying
x = -0.3333333333 + 0.3333333333z

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