-7(p-3q)-5(4q-3p)=b

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Solution for -7(p-3q)-5(4q-3p)=b equation:


Simplifying
-7(p + -3q) + -5(4q + -3p) = b
(p * -7 + -3q * -7) + -5(4q + -3p) = b
(-7p + 21q) + -5(4q + -3p) = b

Reorder the terms:
-7p + 21q + -5(-3p + 4q) = b
-7p + 21q + (-3p * -5 + 4q * -5) = b
-7p + 21q + (15p + -20q) = b

Reorder the terms:
-7p + 15p + 21q + -20q = b

Combine like terms: -7p + 15p = 8p
8p + 21q + -20q = b

Combine like terms: 21q + -20q = 1q
8p + 1q = b

Solving
8p + 1q = b

Solving for variable 'p'.

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

Add '-1q' to each side of the equation.
8p + 1q + -1q = b + -1q

Combine like terms: 1q + -1q = 0
8p + 0 = b + -1q
8p = b + -1q

Divide each side by '8'.
p = 0.125b + -0.125q

Simplifying
p = 0.125b + -0.125q

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