9(11-a)=3(3a-9)

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


Simplifying
9(11 + -1a) = 3(3a + -9)
(11 * 9 + -1a * 9) = 3(3a + -9)
(99 + -9a) = 3(3a + -9)

Reorder the terms:
99 + -9a = 3(-9 + 3a)
99 + -9a = (-9 * 3 + 3a * 3)
99 + -9a = (-27 + 9a)

Solving
99 + -9a = -27 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
99 + -9a + -9a = -27 + 9a + -9a

Combine like terms: -9a + -9a = -18a
99 + -18a = -27 + 9a + -9a

Combine like terms: 9a + -9a = 0
99 + -18a = -27 + 0
99 + -18a = -27

Add '-99' to each side of the equation.
99 + -99 + -18a = -27 + -99

Combine like terms: 99 + -99 = 0
0 + -18a = -27 + -99
-18a = -27 + -99

Combine like terms: -27 + -99 = -126
-18a = -126

Divide each side by '-18'.
a = 7

Simplifying
a = 7

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