1230-x=400

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Solution for 1230-x=400 equation:


Simplifying
1230 + -1x = 400

Solving
1230 + -1x = 400

Solving for variable 'x'.

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

Add '-1230' to each side of the equation.
1230 + -1230 + -1x = 400 + -1230

Combine like terms: 1230 + -1230 = 0
0 + -1x = 400 + -1230
-1x = 400 + -1230

Combine like terms: 400 + -1230 = -830
-1x = -830

Divide each side by '-1'.
x = 830

Simplifying
x = 830

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