2a-3(a+3)=-13

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Solution for 2a-3(a+3)=-13 equation:


Simplifying
2a + -3(a + 3) = -13

Reorder the terms:
2a + -3(3 + a) = -13
2a + (3 * -3 + a * -3) = -13
2a + (-9 + -3a) = -13

Reorder the terms:
-9 + 2a + -3a = -13

Combine like terms: 2a + -3a = -1a
-9 + -1a = -13

Solving
-9 + -1a = -13

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + -1a = -13 + 9

Combine like terms: -9 + 9 = 0
0 + -1a = -13 + 9
-1a = -13 + 9

Combine like terms: -13 + 9 = -4
-1a = -4

Divide each side by '-1'.
a = 4

Simplifying
a = 4

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