3(a-2)+18(a-3)=-8

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Solution for 3(a-2)+18(a-3)=-8 equation:


Simplifying
3(a + -2) + 18(a + -3) = -8

Reorder the terms:
3(-2 + a) + 18(a + -3) = -8
(-2 * 3 + a * 3) + 18(a + -3) = -8
(-6 + 3a) + 18(a + -3) = -8

Reorder the terms:
-6 + 3a + 18(-3 + a) = -8
-6 + 3a + (-3 * 18 + a * 18) = -8
-6 + 3a + (-54 + 18a) = -8

Reorder the terms:
-6 + -54 + 3a + 18a = -8

Combine like terms: -6 + -54 = -60
-60 + 3a + 18a = -8

Combine like terms: 3a + 18a = 21a
-60 + 21a = -8

Solving
-60 + 21a = -8

Solving for variable 'a'.

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

Add '60' to each side of the equation.
-60 + 60 + 21a = -8 + 60

Combine like terms: -60 + 60 = 0
0 + 21a = -8 + 60
21a = -8 + 60

Combine like terms: -8 + 60 = 52
21a = 52

Divide each side by '21'.
a = 2.476190476

Simplifying
a = 2.476190476

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