3=7-2p

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Solution for 3=7-2p equation:


Simplifying
3 = 7 + -2p

Solving
3 = 7 + -2p

Solving for variable 'p'.

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

Add '2p' to each side of the equation.
3 + 2p = 7 + -2p + 2p

Combine like terms: -2p + 2p = 0
3 + 2p = 7 + 0
3 + 2p = 7

Add '-3' to each side of the equation.
3 + -3 + 2p = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 2p = 7 + -3
2p = 7 + -3

Combine like terms: 7 + -3 = 4
2p = 4

Divide each side by '2'.
p = 2

Simplifying
p = 2

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