Respuesta :

Ans=
9p-7p=3a+1-(2a-3)
=2p=3a+11-2a+3
=2p=a+4
=p=(a+4)/2

Ans is (a+4)/2

-Jing

The required expression for p in terms of a is p = (a+4)/2.

9p = 3a + 1        ---(1)

7p = 2a - 3         ---(2)

What is the equation?

Equation, is values of two expression that are equal.

Subtracting from (1) -(2).

9p-7p = 3a - 2a + 1 + 3
2p = a + 4
p = ( a + 4 )/2

Thus, the required expression for p in terms of a is p = (a+4)/2.

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