15.80+x=20.90

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Solution for 15.80+x=20.90 equation: 


Simplifying
15.80 + x = 20.90

Solving
15.80 + x = 20.90

Solving for variable 'x'.

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

Add '-15.80' to each side of the equation.
15.80 + -15.80 + x = 20.90 + -15.80

Combine like terms: 15.80 + -15.80 = 0.00
0.00 + x = 20.90 + -15.80
x = 20.90 + -15.80

Combine like terms: 20.90 + -15.80 = 5.1
x = 5.1

Simplifying
x = 5.1

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