4a+7+8a=9+5a

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Solution for 4a+7+8a=9+5a equation:


Simplifying
4a + 7 + 8a = 9 + 5a

Reorder the terms:
7 + 4a + 8a = 9 + 5a

Combine like terms: 4a + 8a = 12a
7 + 12a = 9 + 5a

Solving
7 + 12a = 9 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
7 + 12a + -5a = 9 + 5a + -5a

Combine like terms: 12a + -5a = 7a
7 + 7a = 9 + 5a + -5a

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

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

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

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

Divide each side by '7'.
a = 0.2857142857

Simplifying
a = 0.2857142857

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