9a-4+(a-11)=23

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Solution for 9a-4+(a-11)=23 equation:


Simplifying
9a + -4 + (a + -11) = 23

Reorder the terms:
9a + -4 + (-11 + a) = 23

Remove parenthesis around (-11 + a)
9a + -4 + -11 + a = 23

Reorder the terms:
-4 + -11 + 9a + a = 23

Combine like terms: -4 + -11 = -15
-15 + 9a + a = 23

Combine like terms: 9a + a = 10a
-15 + 10a = 23

Solving
-15 + 10a = 23

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 = 23 + 15

Combine like terms: -15 + 15 = 0
0 + 10a = 23 + 15
10a = 23 + 15

Combine like terms: 23 + 15 = 38
10a = 38

Divide each side by '10'.
a = 3.8

Simplifying
a = 3.8

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