3x+124=7x-120

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Solution for 3x+124=7x-120 equation:


Simplifying
3x + 124 = 7x + -120

Reorder the terms:
124 + 3x = 7x + -120

Reorder the terms:
124 + 3x = -120 + 7x

Solving
124 + 3x = -120 + 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.
124 + 3x + -7x = -120 + 7x + -7x

Combine like terms: 3x + -7x = -4x
124 + -4x = -120 + 7x + -7x

Combine like terms: 7x + -7x = 0
124 + -4x = -120 + 0
124 + -4x = -120

Add '-124' to each side of the equation.
124 + -124 + -4x = -120 + -124

Combine like terms: 124 + -124 = 0
0 + -4x = -120 + -124
-4x = -120 + -124

Combine like terms: -120 + -124 = -244
-4x = -244

Divide each side by '-4'.
x = 61

Simplifying
x = 61

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