7a=21.5-4

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Solution for 7a=21.5-4 equation: 


Simplifying
7a = 21.5 + -4

Combine like terms: 21.5 + -4 = 17.5
7a = 17.5

Solving
7a = 17.5

Solving for variable 'a'.

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

Divide each side by '7'.
a = 2.5

Simplifying
a = 2.5

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