11(7a+5)=20(3a+7)

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Solution for 11(7a+5)=20(3a+7) equation:


Simplifying
11(7a + 5) = 20(3a + 7)

Reorder the terms:
11(5 + 7a) = 20(3a + 7)
(5 * 11 + 7a * 11) = 20(3a + 7)
(55 + 77a) = 20(3a + 7)

Reorder the terms:
55 + 77a = 20(7 + 3a)
55 + 77a = (7 * 20 + 3a * 20)
55 + 77a = (140 + 60a)

Solving
55 + 77a = 140 + 60a

Solving for variable 'a'.

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

Add '-60a' to each side of the equation.
55 + 77a + -60a = 140 + 60a + -60a

Combine like terms: 77a + -60a = 17a
55 + 17a = 140 + 60a + -60a

Combine like terms: 60a + -60a = 0
55 + 17a = 140 + 0
55 + 17a = 140

Add '-55' to each side of the equation.
55 + -55 + 17a = 140 + -55

Combine like terms: 55 + -55 = 0
0 + 17a = 140 + -55
17a = 140 + -55

Combine like terms: 140 + -55 = 85
17a = 85

Divide each side by '17'.
a = 5

Simplifying
a = 5

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