(12a+7b)+(2a-9b)=

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Solution for (12a+7b)+(2a-9b)= equation:


Simplifying
(12a + 7b) + (2a + -9b) = 0

Remove parenthesis around (12a + 7b)
12a + 7b + (2a + -9b) = 0

Remove parenthesis around (2a + -9b)
12a + 7b + 2a + -9b = 0

Reorder the terms:
12a + 2a + 7b + -9b = 0

Combine like terms: 12a + 2a = 14a
14a + 7b + -9b = 0

Combine like terms: 7b + -9b = -2b
14a + -2b = 0

Solving
14a + -2b = 0

Solving for variable 'a'.

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

Add '2b' to each side of the equation.
14a + -2b + 2b = 0 + 2b

Combine like terms: -2b + 2b = 0
14a + 0 = 0 + 2b
14a = 0 + 2b
Remove the zero:
14a = 2b

Divide each side by '14'.
a = 0.1428571429b

Simplifying
a = 0.1428571429b

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