11a+9=4a+20

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Solution for 11a+9=4a+20 equation:


Simplifying
11a + 9 = 4a + 20

Reorder the terms:
9 + 11a = 4a + 20

Reorder the terms:
9 + 11a = 20 + 4a

Solving
9 + 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.
9 + 11a + -4a = 20 + 4a + -4a

Combine like terms: 11a + -4a = 7a
9 + 7a = 20 + 4a + -4a

Combine like terms: 4a + -4a = 0
9 + 7a = 20 + 0
9 + 7a = 20

Add '-9' to each side of the equation.
9 + -9 + 7a = 20 + -9

Combine like terms: 9 + -9 = 0
0 + 7a = 20 + -9
7a = 20 + -9

Combine like terms: 20 + -9 = 11
7a = 11

Divide each side by '7'.
a = 1.571428571

Simplifying
a = 1.571428571

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