Question

If P + Q=16 and
P+10=20
What Is The Possible Value Of Q?

Answer 1

the answer is 6 because p+10=20 you subtract 10 from both sides and get p=10.
Then you subsitute 10 in for p in the equatin P=Q=16 and 10 +Q=16 because the only answer is 6

Answer 2

P + 10 = 20 Subtract 10 from both sides
P = 10

Substitute P = 10 into P + Q = 16

P + Q = 16 Plug in 10 for P
10 + Q = 16 Subtract 10 from both sides
Q = 6