a+b-3=P

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Solution for a+b-3=P equation:


Simplifying
a + b + -3 = P

Reorder the terms:
-3 + a + b = P

Solving
-3 + a + b = P

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 + a + 3 + b = 3 + P

Reorder the terms:
-3 + 3 + a + b = 3 + P

Combine like terms: -3 + 3 = 0
0 + a + b = 3 + P
a + b = 3 + P

Add '-1b' to each side of the equation.
a + b + -1b = 3 + P + -1b

Combine like terms: b + -1b = 0
a + 0 = 3 + P + -1b
a = 3 + P + -1b

Simplifying
a = 3 + P + -1b

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