121-3X=-7X-81

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Solution for 121-3X=-7X-81 equation:


Simplifying
121 + -3X = -7X + -81

Reorder the terms:
121 + -3X = -81 + -7X

Solving
121 + -3X = -81 + -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.
121 + -3X + 7X = -81 + -7X + 7X

Combine like terms: -3X + 7X = 4X
121 + 4X = -81 + -7X + 7X

Combine like terms: -7X + 7X = 0
121 + 4X = -81 + 0
121 + 4X = -81

Add '-121' to each side of the equation.
121 + -121 + 4X = -81 + -121

Combine like terms: 121 + -121 = 0
0 + 4X = -81 + -121
4X = -81 + -121

Combine like terms: -81 + -121 = -202
4X = -202

Divide each side by '4'.
X = -50.5

Simplifying
X = -50.5

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