9a-4+(a-11)=25

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Solution for 9a-4+(a-11)=25 equation:


Simplifying
9a + -4 + (a + -11) = 25

Reorder the terms:
9a + -4 + (-11 + a) = 25

Remove parenthesis around (-11 + a)
9a + -4 + -11 + a = 25

Reorder the terms:
-4 + -11 + 9a + a = 25

Combine like terms: -4 + -11 = -15
-15 + 9a + a = 25

Combine like terms: 9a + a = 10a
-15 + 10a = 25

Solving
-15 + 10a = 25

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 = 25 + 15

Combine like terms: -15 + 15 = 0
0 + 10a = 25 + 15
10a = 25 + 15

Combine like terms: 25 + 15 = 40
10a = 40

Divide each side by '10'.
a = 4

Simplifying
a = 4

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