400+300x=1300

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Solution for 400+300x=1300 equation: 


Simplifying
400 + 300x = 1300

Solving
400 + 300x = 1300

Solving for variable 'x'.

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

Add '-400' to each side of the equation.
400 + -400 + 300x = 1300 + -400

Combine like terms: 400 + -400 = 0
0 + 300x = 1300 + -400
300x = 1300 + -400

Combine like terms: 1300 + -400 = 900
300x = 900

Divide each side by '300'.
x = 3

Simplifying
x = 3

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