Answer:
7p+7q+63
Step by step:
Distribute 7 to p, q and 9
If we multiply the inequality n<4 by 3 we get the following:

Now, on the next inequality we have the following:

By transitive property, we have:

therefore, the solution set for m is m<8
Answer:
x and y = 0
the question looks weird and almost wrong because when you subtract the equations, you are left with nothing
Step-by-step explanation:
Multiply the top equation by 3 to make the -x a -3x instead.
Then do the top equation - the bottom equation
At this point you should be left with x
Answer:
Explanation:
19.
P = 2(x - 3 + 7x + 1)
= 2(8x - 2)
= 16x - 4
20.
P = 3y + 5 + y - 4 + 6y
= 10y + 1