2(a+3)-3(-3a-4)=4-(7a+2)

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Solution for 2(a+3)-3(-3a-4)=4-(7a+2) equation:


Simplifying
2(a + 3) + -3(-3a + -4) = 4 + -1(7a + 2)

Reorder the terms:
2(3 + a) + -3(-3a + -4) = 4 + -1(7a + 2)
(3 * 2 + a * 2) + -3(-3a + -4) = 4 + -1(7a + 2)
(6 + 2a) + -3(-3a + -4) = 4 + -1(7a + 2)

Reorder the terms:
6 + 2a + -3(-4 + -3a) = 4 + -1(7a + 2)
6 + 2a + (-4 * -3 + -3a * -3) = 4 + -1(7a + 2)
6 + 2a + (12 + 9a) = 4 + -1(7a + 2)

Reorder the terms:
6 + 12 + 2a + 9a = 4 + -1(7a + 2)

Combine like terms: 6 + 12 = 18
18 + 2a + 9a = 4 + -1(7a + 2)

Combine like terms: 2a + 9a = 11a
18 + 11a = 4 + -1(7a + 2)

Reorder the terms:
18 + 11a = 4 + -1(2 + 7a)
18 + 11a = 4 + (2 * -1 + 7a * -1)
18 + 11a = 4 + (-2 + -7a)

Combine like terms: 4 + -2 = 2
18 + 11a = 2 + -7a

Solving
18 + 11a = 2 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
18 + 11a + 7a = 2 + -7a + 7a

Combine like terms: 11a + 7a = 18a
18 + 18a = 2 + -7a + 7a

Combine like terms: -7a + 7a = 0
18 + 18a = 2 + 0
18 + 18a = 2

Add '-18' to each side of the equation.
18 + -18 + 18a = 2 + -18

Combine like terms: 18 + -18 = 0
0 + 18a = 2 + -18
18a = 2 + -18

Combine like terms: 2 + -18 = -16
18a = -16

Divide each side by '18'.
a = -0.8888888889

Simplifying
a = -0.8888888889

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