-a+3=5s+21

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


Simplifying
-1a + 3 = 5s + 21

Reorder the terms:
3 + -1a = 5s + 21

Reorder the terms:
3 + -1a = 21 + 5s

Solving
3 + -1a = 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 + -1a = 21 + -3 + 5s

Combine like terms: 3 + -3 = 0
0 + -1a = 21 + -3 + 5s
-1a = 21 + -3 + 5s

Combine like terms: 21 + -3 = 18
-1a = 18 + 5s

Divide each side by '-1'.
a = -18 + -5s

Simplifying
a = -18 + -5s

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