.4(5+x)=8

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Solution for .4(5+x)=8 equation: 


Simplifying
0.4(5 + x) = 8
(5 * 0.4 + x * 0.4) = 8
(2 + 0.4x) = 8

Solving
2 + 0.4x = 8

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 0.4x = 8 + -2

Combine like terms: 2 + -2 = 0
0 + 0.4x = 8 + -2
0.4x = 8 + -2

Combine like terms: 8 + -2 = 6
0.4x = 6

Divide each side by '0.4'.
x = 15

Simplifying
x = 15

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