x-121=4x-7

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Solution for x-121=4x-7 equation:


Simplifying
x + -121 = 4x + -7

Reorder the terms:
-121 + x = 4x + -7

Reorder the terms:
-121 + x = -7 + 4x

Solving
-121 + x = -7 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-121 + x + -4x = -7 + 4x + -4x

Combine like terms: x + -4x = -3x
-121 + -3x = -7 + 4x + -4x

Combine like terms: 4x + -4x = 0
-121 + -3x = -7 + 0
-121 + -3x = -7

Add '121' to each side of the equation.
-121 + 121 + -3x = -7 + 121

Combine like terms: -121 + 121 = 0
0 + -3x = -7 + 121
-3x = -7 + 121

Combine like terms: -7 + 121 = 114
-3x = 114

Divide each side by '-3'.
x = -38

Simplifying
x = -38

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