400=10x+220

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Solution for 400=10x+220 equation: 


Simplifying
400 = 10x + 220

Reorder the terms:
400 = 220 + 10x

Solving
400 = 220 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
400 + -10x = 220 + 10x + -10x

Combine like terms: 10x + -10x = 0
400 + -10x = 220 + 0
400 + -10x = 220

Add '-400' to each side of the equation.
400 + -400 + -10x = 220 + -400

Combine like terms: 400 + -400 = 0
0 + -10x = 220 + -400
-10x = 220 + -400

Combine like terms: 220 + -400 = -180
-10x = -180

Divide each side by '-10'.
x = 18

Simplifying
x = 18

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