7a-4a=20+2+5

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Solution for 7a-4a=20+2+5 equation: 


Simplifying
7a + -4a = 20 + 2 + 5

Combine like terms: 7a + -4a = 3a
3a = 20 + 2 + 5

Combine like terms: 20 + 2 = 22
3a = 22 + 5

Combine like terms: 22 + 5 = 27
3a = 27

Solving
3a = 27

Solving for variable 'a'.

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

Divide each side by '3'.
a = 9

Simplifying
a = 9

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