Answer:
Below in bold.
Step-by-step explanation:
Use the elimination method:
a. x + y = 23
x - y = 7
b. Adding the 2 equations eliminates y, so we have
2x = 30
x = 15.
Substitute x = 15 in equation a:
15 + y = 23
y = 23 - 15
y = 8.
Answer x = 15, y = 6.
Answer:
I think the answer would be 1083
Step-by-step explanation:
Hope it helps .
Answer:
13x^2+2x+5
Step-by-step explanation:
that is the right answer
You have to combine the like terms.