2(5a-3)-9=12-5

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Solution for 2(5a-3)-9=12-5 equation:


Simplifying
2(5a + -3) + -9 = 12 + -5

Reorder the terms:
2(-3 + 5a) + -9 = 12 + -5
(-3 * 2 + 5a * 2) + -9 = 12 + -5
(-6 + 10a) + -9 = 12 + -5

Reorder the terms:
-6 + -9 + 10a = 12 + -5

Combine like terms: -6 + -9 = -15
-15 + 10a = 12 + -5

Combine like terms: 12 + -5 = 7
-15 + 10a = 7

Solving
-15 + 10a = 7

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 + 10a = 7 + 15

Combine like terms: -15 + 15 = 0
0 + 10a = 7 + 15
10a = 7 + 15

Combine like terms: 7 + 15 = 22
10a = 22

Divide each side by '10'.
a = 2.2

Simplifying
a = 2.2

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