4a-9=3(a+1)+18a+6

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Solution for 4a-9=3(a+1)+18a+6 equation:


Simplifying
4a + -9 = 3(a + 1) + 18a + 6

Reorder the terms:
-9 + 4a = 3(a + 1) + 18a + 6

Reorder the terms:
-9 + 4a = 3(1 + a) + 18a + 6
-9 + 4a = (1 * 3 + a * 3) + 18a + 6
-9 + 4a = (3 + 3a) + 18a + 6

Reorder the terms:
-9 + 4a = 3 + 6 + 3a + 18a

Combine like terms: 3 + 6 = 9
-9 + 4a = 9 + 3a + 18a

Combine like terms: 3a + 18a = 21a
-9 + 4a = 9 + 21a

Solving
-9 + 4a = 9 + 21a

Solving for variable 'a'.

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

Add '-21a' to each side of the equation.
-9 + 4a + -21a = 9 + 21a + -21a

Combine like terms: 4a + -21a = -17a
-9 + -17a = 9 + 21a + -21a

Combine like terms: 21a + -21a = 0
-9 + -17a = 9 + 0
-9 + -17a = 9

Add '9' to each side of the equation.
-9 + 9 + -17a = 9 + 9

Combine like terms: -9 + 9 = 0
0 + -17a = 9 + 9
-17a = 9 + 9

Combine like terms: 9 + 9 = 18
-17a = 18

Divide each side by '-17'.
a = -1.058823529

Simplifying
a = -1.058823529

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