A would be the correct answer because the y variable only has a coefficient of 1. So we would solve for y, which would get us y=3x+5, then we would substitute the value in the second equation which would look like -4x+5(3x+5)=58. Hope this helpss. :)
Answer:110
Step-by-step explanation:x^2+17x=15x+35
x^2+17x-15x-35=0
x^2+2x-35=0
delta=2^2-4*1*(-35)=4+140=144
x1=(-2+V144)/2=(-2+12)/2=10/2
x=5
so 15*5+35=75+35=110
Answer:
2x^2 - 9x - 5
Step-by-step explanation:
(2x+1)(x-5)
Using FOIL
= 2x^2 - 10x + x - 5
= 2x^2 - 9x - 5
Answer:
-7 and 9!
Step-by-step explanation:
To get to the sum of 2 you add -7 and 9.
To get to the diffrence of -16 you minus -7 and 9.
Answer is A
if x+y=5
y= -x+5
2x + (-x+5) =-2
2x -x +5 = -2
x+5 = -2
x=-7
