7x-121=3x-5

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Solution for 7x-121=3x-5 equation:


Simplifying
7x + -121 = 3x + -5

Reorder the terms:
-121 + 7x = 3x + -5

Reorder the terms:
-121 + 7x = -5 + 3x

Solving
-121 + 7x = -5 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-121 + 7x + -3x = -5 + 3x + -3x

Combine like terms: 7x + -3x = 4x
-121 + 4x = -5 + 3x + -3x

Combine like terms: 3x + -3x = 0
-121 + 4x = -5 + 0
-121 + 4x = -5

Add '121' to each side of the equation.
-121 + 121 + 4x = -5 + 121

Combine like terms: -121 + 121 = 0
0 + 4x = -5 + 121
4x = -5 + 121

Combine like terms: -5 + 121 = 116
4x = 116

Divide each side by '4'.
x = 29

Simplifying
x = 29

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