3+.4x=13

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Solution for 3+.4x=13 equation: 


Simplifying
3 + 0.4x = 13

Solving
3 + 0.4x = 13

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 0.4x = 13 + -3

Combine like terms: 3 + -3 = 0
0 + 0.4x = 13 + -3
0.4x = 13 + -3

Combine like terms: 13 + -3 = 10
0.4x = 10

Divide each side by '0.4'.
x = 25

Simplifying
x = 25

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