11a-15=4a+20

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Solution for 11a-15=4a+20 equation:


Simplifying
11a + -15 = 4a + 20

Reorder the terms:
-15 + 11a = 4a + 20

Reorder the terms:
-15 + 11a = 20 + 4a

Solving
-15 + 11a = 20 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-15 + 11a + -4a = 20 + 4a + -4a

Combine like terms: 11a + -4a = 7a
-15 + 7a = 20 + 4a + -4a

Combine like terms: 4a + -4a = 0
-15 + 7a = 20 + 0
-15 + 7a = 20

Add '15' to each side of the equation.
-15 + 15 + 7a = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 7a = 20 + 15
7a = 20 + 15

Combine like terms: 20 + 15 = 35
7a = 35

Divide each side by '7'.
a = 5

Simplifying
a = 5

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