Answer:
x = -7, y = -9
Step-by-step explanation:
The coefficient (the number before) the y is the same but the signs are opposite so add the equations together:
x-3x+y-y=-16+30
-2x=14
x=-7
y=-16-x=-16--7=-9
Answer:
$7.91
Step-by-step explanation:
4.75 + .79(4)
4.75 + 3.16
7.91
I can't see any table, is there a picture?
but something like 45x would be near the answer
Remember
(x^m)(x^n)=x^(m+n)
(x^2y^2-5)^2=
(x^2y^2-5)(x^2y^2-5)=
x^4y^4-5x^2y^2-5x^2y^2+25=