Answer:
A) x + y = 8
B) 3x + 2y = 21
We multiply A) by -2
A) -2x -2y = -16 Then we add this to
B) 3x + 2y = 21
x = 5
y = 3
Second answer is correct
Step-by-step explanation:
Answer:
Step-by-step explanation:
..
Slope-intercept form is y=mx+b
m is slope and b is y-intercept.
So, if you have -5x-3y=3
Make it into y=something
So, -3y=3+5x
y= -3/3 + 5/-3 x
y= -1 - 5/3 x
Same as the first one in your pic.
Root 78 would go Between 8 and 9
Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.
x = −1 ± i√2
There's no real solutions
