3a-3(2a+5)=13

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Solution for 3a-3(2a+5)=13 equation:


Simplifying
3a + -3(2a + 5) = 13

Reorder the terms:
3a + -3(5 + 2a) = 13
3a + (5 * -3 + 2a * -3) = 13
3a + (-15 + -6a) = 13

Reorder the terms:
-15 + 3a + -6a = 13

Combine like terms: 3a + -6a = -3a
-15 + -3a = 13

Solving
-15 + -3a = 13

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + -3a = 13 + 15

Combine like terms: -15 + 15 = 0
0 + -3a = 13 + 15
-3a = 13 + 15

Combine like terms: 13 + 15 = 28
-3a = 28

Divide each side by '-3'.
a = -9.333333333

Simplifying
a = -9.333333333

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