3+.05(4a+8)=9-2a

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Solution for 3+.05(4a+8)=9-2a equation:


Simplifying
3 + 0.05(4a + 8) = 9 + -2a

Reorder the terms:
3 + 0.05(8 + 4a) = 9 + -2a
3 + (8 * 0.05 + 4a * 0.05) = 9 + -2a
3 + (0.4 + 0.2a) = 9 + -2a

Combine like terms: 3 + 0.4 = 3.4
3.4 + 0.2a = 9 + -2a

Solving
3.4 + 0.2a = 9 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
3.4 + 0.2a + 2a = 9 + -2a + 2a

Combine like terms: 0.2a + 2a = 2.2a
3.4 + 2.2a = 9 + -2a + 2a

Combine like terms: -2a + 2a = 0
3.4 + 2.2a = 9 + 0
3.4 + 2.2a = 9

Add '-3.4' to each side of the equation.
3.4 + -3.4 + 2.2a = 9 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + 2.2a = 9 + -3.4
2.2a = 9 + -3.4

Combine like terms: 9 + -3.4 = 5.6
2.2a = 5.6

Divide each side by '2.2'.
a = 2.545454545

Simplifying
a = 2.545454545

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