20+7a=56+3a

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Solution for 20+7a=56+3a equation:


Simplifying
20 + 7a = 56 + 3a

Solving
20 + 7a = 56 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
20 + 7a + -3a = 56 + 3a + -3a

Combine like terms: 7a + -3a = 4a
20 + 4a = 56 + 3a + -3a

Combine like terms: 3a + -3a = 0
20 + 4a = 56 + 0
20 + 4a = 56

Add '-20' to each side of the equation.
20 + -20 + 4a = 56 + -20

Combine like terms: 20 + -20 = 0
0 + 4a = 56 + -20
4a = 56 + -20

Combine like terms: 56 + -20 = 36
4a = 36

Divide each side by '4'.
a = 9

Simplifying
a = 9

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