.25(3+a)=.5

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Solution for .25(3+a)=.5 equation: 


Simplifying
0.25(3 + a) = 0.5
(3 * 0.25 + a * 0.25) = 0.5
(0.75 + 0.25a) = 0.5

Solving
0.75 + 0.25a = 0.5

Solving for variable 'a'.

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

Add '-0.75' to each side of the equation.
0.75 + -0.75 + 0.25a = 0.5 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + 0.25a = 0.5 + -0.75
0.25a = 0.5 + -0.75

Combine like terms: 0.5 + -0.75 = -0.25
0.25a = -0.25

Divide each side by '0.25'.
a = -1

Simplifying
a = -1

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