Question

using trial and error method solve 7-p=13​

Answer 1

Answer:

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Solve the following equation by trial and error method:

5p+2=17

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Solution

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We use trial and error method,

5p+2=17

Put, p=0

5(0)+2=17

=> 2



=17

Put, p=1

5(1)+2=17

=> 7



=17

Put, p=2

5(2)+2=17

=> 12



=17

Put, p=3

5(3)+2=17

=> 17=17

Hence p=3

Answer 2

Answer:

p = -6 is the solution of 7 - p = 13

Step-by-step explanation:

using trial and error method solve 7-p=13​

Put p = 0

LHS  = 7 - 0

= 7

≠ 13

So, p =1  is not solution

Put p = 1

LHS  = 7 - 1

= 6

≠ 13

So, p =1  is not solution

Put p = -1

LHS  = 7 -(-1)

= 8

≠ 13

So, p =-1  is not solution

Put p = -2

LHS  = 7 -(-2)

= 9

≠ 13

So, p =-2  is not solution

Put p = -3

LHS  = 7 -(-3)

= 10

≠ 13

So, p =-3  is not solution

Put p = -6

LHS  = 7 -(-6)

= 13

= 13

So, p =-6  is a solution