89-4X=8-7X

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Solution for 89-4X=8-7X equation:


Simplifying
89 + -4X = 8 + -7X

Solving
89 + -4X = 8 + -7X

Solving for variable 'X'.

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

Add '7X' to each side of the equation.
89 + -4X + 7X = 8 + -7X + 7X

Combine like terms: -4X + 7X = 3X
89 + 3X = 8 + -7X + 7X

Combine like terms: -7X + 7X = 0
89 + 3X = 8 + 0
89 + 3X = 8

Add '-89' to each side of the equation.
89 + -89 + 3X = 8 + -89

Combine like terms: 89 + -89 = 0
0 + 3X = 8 + -89
3X = 8 + -89

Combine like terms: 8 + -89 = -81
3X = -81

Divide each side by '3'.
X = -27

Simplifying
X = -27

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