x+300+2x=900

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Solution for x+300+2x=900 equation:


Simplifying
x + 300 + 2x = 900

Reorder the terms:
300 + x + 2x = 900

Combine like terms: x + 2x = 3x
300 + 3x = 900

Solving
300 + 3x = 900

Solving for variable 'x'.

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

Add '-300' to each side of the equation.
300 + -300 + 3x = 900 + -300

Combine like terms: 300 + -300 = 0
0 + 3x = 900 + -300
3x = 900 + -300

Combine like terms: 900 + -300 = 600
3x = 600

Divide each side by '3'.
x = 200

Simplifying
x = 200

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