p-2q-r=1

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Solution for p-2q-r=1 equation:


Simplifying
p + -2q + -1r = 1

Solving
p + -2q + -1r = 1

Solving for variable 'p'.

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

Add '2q' to each side of the equation.
p + -2q + 2q + -1r = 1 + 2q

Combine like terms: -2q + 2q = 0
p + 0 + -1r = 1 + 2q
p + -1r = 1 + 2q

Add 'r' to each side of the equation.
p + -1r + r = 1 + 2q + r

Combine like terms: -1r + r = 0
p + 0 = 1 + 2q + r
p = 1 + 2q + r

Simplifying
p = 1 + 2q + r

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