3+.5(4a+8)=9-2a

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Solution for 3+.5(4a+8)=9-2a equation:


Simplifying
3 + 0.5(4a + 8) = 9 + -2a

Reorder the terms:
3 + 0.5(8 + 4a) = 9 + -2a
3 + (8 * 0.5 + 4a * 0.5) = 9 + -2a
3 + (4 + 2a) = 9 + -2a

Combine like terms: 3 + 4 = 7
7 + 2a = 9 + -2a

Solving
7 + 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.
7 + 2a + 2a = 9 + -2a + 2a

Combine like terms: 2a + 2a = 4a
7 + 4a = 9 + -2a + 2a

Combine like terms: -2a + 2a = 0
7 + 4a = 9 + 0
7 + 4a = 9

Add '-7' to each side of the equation.
7 + -7 + 4a = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 4a = 9 + -7
4a = 9 + -7

Combine like terms: 9 + -7 = 2
4a = 2

Divide each side by '4'.
a = 0.5

Simplifying
a = 0.5

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