5p-4q+2r=21

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Solution for 5p-4q+2r=21 equation:


Simplifying
5p + -4q + 2r = 21

Solving
5p + -4q + 2r = 21

Solving for variable 'p'.

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

Add '4q' to each side of the equation.
5p + -4q + 4q + 2r = 21 + 4q

Combine like terms: -4q + 4q = 0
5p + 0 + 2r = 21 + 4q
5p + 2r = 21 + 4q

Add '-2r' to each side of the equation.
5p + 2r + -2r = 21 + 4q + -2r

Combine like terms: 2r + -2r = 0
5p + 0 = 21 + 4q + -2r
5p = 21 + 4q + -2r

Divide each side by '5'.
p = 4.2 + 0.8q + -0.4r

Simplifying
p = 4.2 + 0.8q + -0.4r

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