7(2a+3)+3(2a-6)=

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Solution for 7(2a+3)+3(2a-6)= equation:


Simplifying
7(2a + 3) + 3(2a + -6) = 0

Reorder the terms:
7(3 + 2a) + 3(2a + -6) = 0
(3 * 7 + 2a * 7) + 3(2a + -6) = 0
(21 + 14a) + 3(2a + -6) = 0

Reorder the terms:
21 + 14a + 3(-6 + 2a) = 0
21 + 14a + (-6 * 3 + 2a * 3) = 0
21 + 14a + (-18 + 6a) = 0

Reorder the terms:
21 + -18 + 14a + 6a = 0

Combine like terms: 21 + -18 = 3
3 + 14a + 6a = 0

Combine like terms: 14a + 6a = 20a
3 + 20a = 0

Solving
3 + 20a = 0

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 20a = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 20a = 0 + -3
20a = 0 + -3

Combine like terms: 0 + -3 = -3
20a = -3

Divide each side by '20'.
a = -0.15

Simplifying
a = -0.15

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