1200=3x+y

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Solution for 1200=3x+y equation:


Simplifying
1200 = 3x + y

Solving
1200 = 3x + y

Solving for variable 'x'.

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

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

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

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

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

Divide each side by '-3'.
x = 400 + -0.3333333333y

Simplifying
x = 400 + -0.3333333333y

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