Is 7 a solution of the equation #3p-8=12#?

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Answer 1 · 2016-08-08T20:05:16

No! 7 is not a solution to the given equation.

Add 8 to both sides giving:

#3p=20#

Divide both sides by 3 giving

#p=20/3 = 6 2/3#

If #p= 6 2/3# then #p!=7#

Answer 2 · 2016-08-08T20:35:49

#13 != 12# so #p# is not a solution.

Substitute the value #7 " for " p# and see if the equation is true or false.

#3p - 8 = 12#

If #p=7, "LHS: " 3xx7-8 = 13#

RHS: #12#

#13 != 12# so #p# is not a solution.#