3(a+3)-2=4(a-6)+9

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Solution for 3(a+3)-2=4(a-6)+9 equation:


Simplifying
3(a + 3) + -2 = 4(a + -6) + 9

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

Reorder the terms:
9 + -2 + 3a = 4(a + -6) + 9

Combine like terms: 9 + -2 = 7
7 + 3a = 4(a + -6) + 9

Reorder the terms:
7 + 3a = 4(-6 + a) + 9
7 + 3a = (-6 * 4 + a * 4) + 9
7 + 3a = (-24 + 4a) + 9

Reorder the terms:
7 + 3a = -24 + 9 + 4a

Combine like terms: -24 + 9 = -15
7 + 3a = -15 + 4a

Solving
7 + 3a = -15 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
7 + 3a + -4a = -15 + 4a + -4a

Combine like terms: 3a + -4a = -1a
7 + -1a = -15 + 4a + -4a

Combine like terms: 4a + -4a = 0
7 + -1a = -15 + 0
7 + -1a = -15

Add '-7' to each side of the equation.
7 + -7 + -1a = -15 + -7

Combine like terms: 7 + -7 = 0
0 + -1a = -15 + -7
-1a = -15 + -7

Combine like terms: -15 + -7 = -22
-1a = -22

Divide each side by '-1'.
a = 22

Simplifying
a = 22

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