1200+3x=2100

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Solution for 1200+3x=2100 equation: 


Simplifying
1200 + 3x = 2100

Solving
1200 + 3x = 2100

Solving for variable 'x'.

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

Add '-1200' to each side of the equation.
1200 + -1200 + 3x = 2100 + -1200

Combine like terms: 1200 + -1200 = 0
0 + 3x = 2100 + -1200
3x = 2100 + -1200

Combine like terms: 2100 + -1200 = 900
3x = 900

Divide each side by '3'.
x = 300

Simplifying
x = 300

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