5A+(-12-9A)=-3-(7A+3)

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Solution for 5A+(-12-9A)=-3-(7A+3) equation:


Simplifying
5A + (-12 + -9A) = -3 + -1(7A + 3)

Remove parenthesis around (-12 + -9A)
5A + -12 + -9A = -3 + -1(7A + 3)

Reorder the terms:
-12 + 5A + -9A = -3 + -1(7A + 3)

Combine like terms: 5A + -9A = -4A
-12 + -4A = -3 + -1(7A + 3)

Reorder the terms:
-12 + -4A = -3 + -1(3 + 7A)
-12 + -4A = -3 + (3 * -1 + 7A * -1)
-12 + -4A = -3 + (-3 + -7A)

Combine like terms: -3 + -3 = -6
-12 + -4A = -6 + -7A

Solving
-12 + -4A = -6 + -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.
-12 + -4A + 7A = -6 + -7A + 7A

Combine like terms: -4A + 7A = 3A
-12 + 3A = -6 + -7A + 7A

Combine like terms: -7A + 7A = 0
-12 + 3A = -6 + 0
-12 + 3A = -6

Add '12' to each side of the equation.
-12 + 12 + 3A = -6 + 12

Combine like terms: -12 + 12 = 0
0 + 3A = -6 + 12
3A = -6 + 12

Combine like terms: -6 + 12 = 6
3A = 6

Divide each side by '3'.
A = 2

Simplifying
A = 2

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