X-81-7X=51

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Solution for X-81-7X=51 equation:


Simplifying
X + -81 + -7X = 51

Reorder the terms:
-81 + X + -7X = 51

Combine like terms: X + -7X = -6X
-81 + -6X = 51

Solving
-81 + -6X = 51

Solving for variable 'X'.

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

Add '81' to each side of the equation.
-81 + 81 + -6X = 51 + 81

Combine like terms: -81 + 81 = 0
0 + -6X = 51 + 81
-6X = 51 + 81

Combine like terms: 51 + 81 = 132
-6X = 132

Divide each side by '-6'.
X = -22

Simplifying
X = -22

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