123=5x+5x+3

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Solution for 123=5x+5x+3 equation:


Simplifying
123 = 5x + 5x + 3

Reorder the terms:
123 = 3 + 5x + 5x

Combine like terms: 5x + 5x = 10x
123 = 3 + 10x

Solving
123 = 3 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
123 + -10x = 3 + 10x + -10x

Combine like terms: 10x + -10x = 0
123 + -10x = 3 + 0
123 + -10x = 3

Add '-123' to each side of the equation.
123 + -123 + -10x = 3 + -123

Combine like terms: 123 + -123 = 0
0 + -10x = 3 + -123
-10x = 3 + -123

Combine like terms: 3 + -123 = -120
-10x = -120

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

Simplifying
x = 12

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