75-0.1x=400

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Solution for 75-0.1x=400 equation: 


Simplifying
75 + -0.1x = 400

Solving
75 + -0.1x = 400

Solving for variable 'x'.

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

Add '-75' to each side of the equation.
75 + -75 + -0.1x = 400 + -75

Combine like terms: 75 + -75 = 0
0 + -0.1x = 400 + -75
-0.1x = 400 + -75

Combine like terms: 400 + -75 = 325
-0.1x = 325

Divide each side by '-0.1'.
x = -3250

Simplifying
x = -3250

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