200-x=300

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Solution for 200-x=300 equation: 


Simplifying
200 + -1x = 300

Solving
200 + -1x = 300

Solving for variable 'x'.

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

Add '-200' to each side of the equation.
200 + -200 + -1x = 300 + -200

Combine like terms: 200 + -200 = 0
0 + -1x = 300 + -200
-1x = 300 + -200

Combine like terms: 300 + -200 = 100
-1x = 100

Divide each side by '-1'.
x = -100

Simplifying
x = -100

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