2a-3=5s+21

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Solution for 2a-3=5s+21 equation:


Simplifying
2a + -3 = 5s + 21

Reorder the terms:
-3 + 2a = 5s + 21

Reorder the terms:
-3 + 2a = 21 + 5s

Solving
-3 + 2a = 21 + 5s

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 2a = 21 + 3 + 5s

Combine like terms: -3 + 3 = 0
0 + 2a = 21 + 3 + 5s
2a = 21 + 3 + 5s

Combine like terms: 21 + 3 = 24
2a = 24 + 5s

Divide each side by '2'.
a = 12 + 2.5s

Simplifying
a = 12 + 2.5s

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