2(3.9-4a)=14.8-6a

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Solution for 2(3.9-4a)=14.8-6a equation:


Simplifying
2(3.9 + -4a) = 14.8 + -6a
(3.9 * 2 + -4a * 2) = 14.8 + -6a
(7.8 + -8a) = 14.8 + -6a

Solving
7.8 + -8a = 14.8 + -6a

Solving for variable 'a'.

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

Add '6a' to each side of the equation.
7.8 + -8a + 6a = 14.8 + -6a + 6a

Combine like terms: -8a + 6a = -2a
7.8 + -2a = 14.8 + -6a + 6a

Combine like terms: -6a + 6a = 0
7.8 + -2a = 14.8 + 0
7.8 + -2a = 14.8

Add '-7.8' to each side of the equation.
7.8 + -7.8 + -2a = 14.8 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + -2a = 14.8 + -7.8
-2a = 14.8 + -7.8

Combine like terms: 14.8 + -7.8 = 7
-2a = 7

Divide each side by '-2'.
a = -3.5

Simplifying
a = -3.5

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