2x - 3y = 7 and -3x + y = 7..multiply Equation 2 by THREE and add to Equation 1
-9x + 3y = 21...........................watch the y's disappear
-7x........ = 28
x = -4
substitute -4 instead of x in either of the ORIGINAL equations
2x - 3y = 7
2(-4) - 3y = 7
-8 -3y = 7..........add 8 to both sides
-3y = 15
y = -5
im not sure
It would be 24.6 ×24.6
it's 605.16
Answer:
y = 4/9 x + 4
Step-by-step explanation:
Slope intercept form: y = mx = b
So 4x - 9y = -36
9y = 4x+ 36
y = 4/9 x + 4
