2a+21=8a+p

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Solution for 2a+21=8a+p equation:


Simplifying
2a + 21 = 8a + p

Reorder the terms:
21 + 2a = 8a + p

Solving
21 + 2a = 8a + p

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
21 + 2a + -8a = 8a + -8a + p

Combine like terms: 2a + -8a = -6a
21 + -6a = 8a + -8a + p

Combine like terms: 8a + -8a = 0
21 + -6a = 0 + p
21 + -6a = p

Add '-21' to each side of the equation.
21 + -21 + -6a = -21 + p

Combine like terms: 21 + -21 = 0
0 + -6a = -21 + p
-6a = -21 + p

Divide each side by '-6'.
a = 3.5 + -0.1666666667p

Simplifying
a = 3.5 + -0.1666666667p

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