8a+3a=-2a+7-3+9

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Solution for 8a+3a=-2a+7-3+9 equation:


Simplifying
8a + 3a = -2a + 7 + -3 + 9

Combine like terms: 8a + 3a = 11a
11a = -2a + 7 + -3 + 9

Reorder the terms:
11a = 7 + -3 + 9 + -2a

Combine like terms: 7 + -3 = 4
11a = 4 + 9 + -2a

Combine like terms: 4 + 9 = 13
11a = 13 + -2a

Solving
11a = 13 + -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.
11a + 2a = 13 + -2a + 2a

Combine like terms: 11a + 2a = 13a
13a = 13 + -2a + 2a

Combine like terms: -2a + 2a = 0
13a = 13 + 0
13a = 13

Divide each side by '13'.
a = 1

Simplifying
a = 1

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