KimSiJeong KimSiJeong

16-07-2021
Mathematics

contestada

check whether p=-2 is a solution of the equation 7p-5=20 or not ...

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jimrgrant1 jimrgrant1

16-07-2021

Answer:

not a solution

Step-by-step explanation:

Substitute p = - 2 into the left side of the equation and if equal to the right side then it is a solution.

7(- 2) - 5 = - 14 - 5 = - 19 ≠ 20

Then p = - 2 is not a solution of the equation

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dines4dinu dines4dinu

16-07-2021

no

Step-by-step explanation:

here, the equation be,

or, 7p-5=20

or, 7×(-2) - 5 = 20

or, -14-5=20

or, -19=20 which is can't be.

so ans is no

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