3.1=5.5-0.4x

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Solution for 3.1=5.5-0.4x equation:


Simplifying
3.1 = 5.5 + -0.4x

Solving
3.1 = 5.5 + -0.4x

Solving for variable 'x'.

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

Add '0.4x' to each side of the equation.
3.1 + 0.4x = 5.5 + -0.4x + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
3.1 + 0.4x = 5.5 + 0.0
3.1 + 0.4x = 5.5

Add '-3.1' to each side of the equation.
3.1 + -3.1 + 0.4x = 5.5 + -3.1

Combine like terms: 3.1 + -3.1 = 0.0
0.0 + 0.4x = 5.5 + -3.1
0.4x = 5.5 + -3.1

Combine like terms: 5.5 + -3.1 = 2.4
0.4x = 2.4

Divide each side by '0.4'.
x = 6

Simplifying
x = 6

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