2a-3(a+3)=9-3(4a+10)

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Solution for 2a-3(a+3)=9-3(4a+10) equation:


Simplifying
2a + -3(a + 3) = 9 + -3(4a + 10)

Reorder the terms:
2a + -3(3 + a) = 9 + -3(4a + 10)
2a + (3 * -3 + a * -3) = 9 + -3(4a + 10)
2a + (-9 + -3a) = 9 + -3(4a + 10)

Reorder the terms:
-9 + 2a + -3a = 9 + -3(4a + 10)

Combine like terms: 2a + -3a = -1a
-9 + -1a = 9 + -3(4a + 10)

Reorder the terms:
-9 + -1a = 9 + -3(10 + 4a)
-9 + -1a = 9 + (10 * -3 + 4a * -3)
-9 + -1a = 9 + (-30 + -12a)

Combine like terms: 9 + -30 = -21
-9 + -1a = -21 + -12a

Solving
-9 + -1a = -21 + -12a

Solving for variable 'a'.

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

Add '12a' to each side of the equation.
-9 + -1a + 12a = -21 + -12a + 12a

Combine like terms: -1a + 12a = 11a
-9 + 11a = -21 + -12a + 12a

Combine like terms: -12a + 12a = 0
-9 + 11a = -21 + 0
-9 + 11a = -21

Add '9' to each side of the equation.
-9 + 9 + 11a = -21 + 9

Combine like terms: -9 + 9 = 0
0 + 11a = -21 + 9
11a = -21 + 9

Combine like terms: -21 + 9 = -12
11a = -12

Divide each side by '11'.
a = -1.090909091

Simplifying
a = -1.090909091

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