If you are trying to find x and y, the answers are x=3 and y=2.
You can use elimination to find the answer. First you cross out the y and -y in the equations and then add the x's and numbers, which will give you 3x=9. You can then solve for x and you will get x=3. To find y, you put 3 into either of the equations for x and solve for y.
2xy substitute 3 for y and 5 for x 2(5)(3) = 30
7+2+5= 14 35 42
the answer to that is 5
true
Commutative
27
"8 plus 5 plus 4 equals 17."
5. Just do 9 minus 4. 5 plus 4 equals 9
No.
2xy - 10x + 3y -15 = 2x(y - 5) + 3(y - 5) =(y - 5)(2x + 3)
false
yes