1-3x=7x+121

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Solution for 1-3x=7x+121 equation:


Simplifying
1 + -3x = 7x + 121

Reorder the terms:
1 + -3x = 121 + 7x

Solving
1 + -3x = 121 + 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.
1 + -3x + -7x = 121 + 7x + -7x

Combine like terms: -3x + -7x = -10x
1 + -10x = 121 + 7x + -7x

Combine like terms: 7x + -7x = 0
1 + -10x = 121 + 0
1 + -10x = 121

Add '-1' to each side of the equation.
1 + -1 + -10x = 121 + -1

Combine like terms: 1 + -1 = 0
0 + -10x = 121 + -1
-10x = 121 + -1

Combine like terms: 121 + -1 = 120
-10x = 120

Divide each side by '-10'.
x = -12

Simplifying
x = -12

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