12x+3000=4200-x

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Solution for 12x+3000=4200-x equation:


Simplifying
12x + 3000 = 4200 + -1x

Reorder the terms:
3000 + 12x = 4200 + -1x

Solving
3000 + 12x = 4200 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3000 + 12x + x = 4200 + -1x + x

Combine like terms: 12x + x = 13x
3000 + 13x = 4200 + -1x + x

Combine like terms: -1x + x = 0
3000 + 13x = 4200 + 0
3000 + 13x = 4200

Add '-3000' to each side of the equation.
3000 + -3000 + 13x = 4200 + -3000

Combine like terms: 3000 + -3000 = 0
0 + 13x = 4200 + -3000
13x = 4200 + -3000

Combine like terms: 4200 + -3000 = 1200
13x = 1200

Divide each side by '13'.
x = 92.30769231

Simplifying
x = 92.30769231

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