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

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Solution for 3+0.5(4a+8)=9-3a equation:


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

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

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

Solving
7 + 2a = 9 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
7 + 2a + 3a = 9 + -3a + 3a

Combine like terms: 2a + 3a = 5a
7 + 5a = 9 + -3a + 3a

Combine like terms: -3a + 3a = 0
7 + 5a = 9 + 0
7 + 5a = 9

Add '-7' to each side of the equation.
7 + -7 + 5a = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 5a = 9 + -7
5a = 9 + -7

Combine like terms: 9 + -7 = 2
5a = 2

Divide each side by '5'.
a = 0.4

Simplifying
a = 0.4

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