Answer:
8x2- 10x- 3 = 46
Step-by-step explanation:
y=-5x-44
Step-by-step explanation:
5x+y=13 passes through (15,31)
rearrange the equation to y=mx+c
5x+y=13
y=-5x+13
substitute the points (15,31)
y=5x+c
31=5(15)+c
31=75+c
-44=c
y=-5x-44
Can be written as 5x+y=-44
2/3x+4=2/3-2x
2/3x-(-2x)
2/3x+2x
2 2/3x+4=2/3
2/3-4=-3 1/3
2 2/3x=-3 1/3
(3 1/3)/(2 2/3)=1 1/4
x = 1 1/4
y=2/3-2x
y=2/3-2(2/3)
y=2/3-4/3
y=-2/3
The answer is (1 1/4, -2/3)
