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

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


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

Reorder the terms:
3a + -2(-9 + a) = 3 + 2a
3a + (-9 * -2 + a * -2) = 3 + 2a
3a + (18 + -2a) = 3 + 2a

Reorder the terms:
18 + 3a + -2a = 3 + 2a

Combine like terms: 3a + -2a = 1a
18 + 1a = 3 + 2a

Solving
18 + 1a = 3 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
18 + 1a + -2a = 3 + 2a + -2a

Combine like terms: 1a + -2a = -1a
18 + -1a = 3 + 2a + -2a

Combine like terms: 2a + -2a = 0
18 + -1a = 3 + 0
18 + -1a = 3

Add '-18' to each side of the equation.
18 + -18 + -1a = 3 + -18

Combine like terms: 18 + -18 = 0
0 + -1a = 3 + -18
-1a = 3 + -18

Combine like terms: 3 + -18 = -15
-1a = -15

Divide each side by '-1'.
a = 15

Simplifying
a = 15

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