18-6a=4a-5(a+3)

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Solution for 18-6a=4a-5(a+3) equation:


Simplifying
18 + -6a = 4a + -5(a + 3)

Reorder the terms:
18 + -6a = 4a + -5(3 + a)
18 + -6a = 4a + (3 * -5 + a * -5)
18 + -6a = 4a + (-15 + -5a)

Reorder the terms:
18 + -6a = -15 + 4a + -5a

Combine like terms: 4a + -5a = -1a
18 + -6a = -15 + -1a

Solving
18 + -6a = -15 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
18 + -6a + a = -15 + -1a + a

Combine like terms: -6a + a = -5a
18 + -5a = -15 + -1a + a

Combine like terms: -1a + a = 0
18 + -5a = -15 + 0
18 + -5a = -15

Add '-18' to each side of the equation.
18 + -18 + -5a = -15 + -18

Combine like terms: 18 + -18 = 0
0 + -5a = -15 + -18
-5a = -15 + -18

Combine like terms: -15 + -18 = -33
-5a = -33

Divide each side by '-5'.
a = 6.6

Simplifying
a = 6.6

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