Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7
8/20 of a minute or 2/5 of a minute
Answer:

Step-by-step explanation:
The slope-intercept form of an equation of aline:

<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept</em>
The formula of a slope:

From the graph we have the points:
(-2, -5)
y-intercept (0, 3) → <em>b = 3</em>
Calculate the slope:

Put the value of the slope and the y-intercept to the equation of a line:
