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

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


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

Reorder the terms:
7 + 6 + 3a + 2a = 0

Combine like terms: 7 + 6 = 13
13 + 3a + 2a = 0

Combine like terms: 3a + 2a = 5a
13 + 5a = 0

Solving
13 + 5a = 0

Solving for variable 'a'.

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

Add '-13' to each side of the equation.
13 + -13 + 5a = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 5a = 0 + -13
5a = 0 + -13

Combine like terms: 0 + -13 = -13
5a = -13

Divide each side by '5'.
a = -2.6

Simplifying
a = -2.6

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