40-20=p

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Solution for 40-20=p equation:


Simplifying
40 + -20 = p

Combine like terms: 40 + -20 = 20
20 = p

Solving
20 = p

Solving for variable 'p'.

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

Add '-1p' to each side of the equation.
20 + -1p = p + -1p

Combine like terms: p + -1p = 0
20 + -1p = 0

Add '-20' to each side of the equation.
20 + -20 + -1p = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -1p = 0 + -20
-1p = 0 + -20

Combine like terms: 0 + -20 = -20
-1p = -20

Divide each side by '-1'.
p = 20

Simplifying
p = 20

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