3.5=40-2x

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Solution for 3.5=40-2x equation:


Simplifying
3.5 = 40 + -2x

Solving
3.5 = 40 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
3.5 + 2x = 40 + -2x + 2x

Combine like terms: -2x + 2x = 0
3.5 + 2x = 40 + 0
3.5 + 2x = 40

Add '-3.5' to each side of the equation.
3.5 + -3.5 + 2x = 40 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 2x = 40 + -3.5
2x = 40 + -3.5

Combine like terms: 40 + -3.5 = 36.5
2x = 36.5

Divide each side by '2'.
x = 18.25

Simplifying
x = 18.25

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