5p^2+18=7p^2

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Solution for 5p^2+18=7p^2 equation: 


Simplifying
5p2 + 18 = 7p2

Reorder the terms:
18 + 5p2 = 7p2

Solving
18 + 5p2 = 7p2

Solving for variable 'p'.

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

Add '-7p2' to each side of the equation.
18 + 5p2 + -7p2 = 7p2 + -7p2

Combine like terms: 5p2 + -7p2 = -2p2
18 + -2p2 = 7p2 + -7p2

Combine like terms: 7p2 + -7p2 = 0
18 + -2p2 = 0

Add '-18' to each side of the equation.
18 + -18 + -2p2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -2p2 = 0 + -18
-2p2 = 0 + -18

Combine like terms: 0 + -18 = -18
-2p2 = -18

Divide each side by '-2'.
p2 = 9

Simplifying
p2 = 9

Take the square root of each side:
p = {-3, 3}

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