Answer:
Option three
Step-by-step explanation:
4/5/8/87/7/9 is the answer
This is indeed a linear equation. y-4x=9 in standard form is y=4x+9.
Check the picture below
solve for "x"
when taking the sine, make sure your calculator is in Degree mode, since the angle is in degrees, not radians
You can use elimination
7x - 3y = 4
-10x + 3y = 2
Add both equations
-3x = 6, x = -2
Plug in -2 for x in one equation
7(-2) - 3y = 4
-14 - 3y = 4
-3y = 18, y = -6
Solution: x = -2, y = -6