9(2a-11)=-3(a+12)

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Solution for 9(2a-11)=-3(a+12) equation:


Simplifying
9(2a + -11) = -3(a + 12)

Reorder the terms:
9(-11 + 2a) = -3(a + 12)
(-11 * 9 + 2a * 9) = -3(a + 12)
(-99 + 18a) = -3(a + 12)

Reorder the terms:
-99 + 18a = -3(12 + a)
-99 + 18a = (12 * -3 + a * -3)
-99 + 18a = (-36 + -3a)

Solving
-99 + 18a = -36 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-99 + 18a + 3a = -36 + -3a + 3a

Combine like terms: 18a + 3a = 21a
-99 + 21a = -36 + -3a + 3a

Combine like terms: -3a + 3a = 0
-99 + 21a = -36 + 0
-99 + 21a = -36

Add '99' to each side of the equation.
-99 + 99 + 21a = -36 + 99

Combine like terms: -99 + 99 = 0
0 + 21a = -36 + 99
21a = -36 + 99

Combine like terms: -36 + 99 = 63
21a = 63

Divide each side by '21'.
a = 3

Simplifying
a = 3

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