Question

5(p+q)-3p-2q find their values if p=-1, q=1, r=2
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Answer 1

Answer:

,

Let p=1,q=1,R=2 in the following equation

5(1+1)-3multiply 1-2multiplyb1

5 multiply 2-3-2

so5multiply is10 and the rest is 1

10-1=9

answer is9