3-7p=-(21-4p)

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Solution for 3-7p=-(21-4p) equation:


Simplifying
3 + -7p = -1(21 + -4p)
3 + -7p = (21 * -1 + -4p * -1)
3 + -7p = (-21 + 4p)

Solving
3 + -7p = -21 + 4p

Solving for variable 'p'.

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

Add '-4p' to each side of the equation.
3 + -7p + -4p = -21 + 4p + -4p

Combine like terms: -7p + -4p = -11p
3 + -11p = -21 + 4p + -4p

Combine like terms: 4p + -4p = 0
3 + -11p = -21 + 0
3 + -11p = -21

Add '-3' to each side of the equation.
3 + -3 + -11p = -21 + -3

Combine like terms: 3 + -3 = 0
0 + -11p = -21 + -3
-11p = -21 + -3

Combine like terms: -21 + -3 = -24
-11p = -24

Divide each side by '-11'.
p = 2.181818182

Simplifying
p = 2.181818182

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