6r - 3t = 6 /*8
6r + 8t = - 16 /*3
48r - 24t = 48
48r + 24t = - 48
---------------------- +
96r = 0
r = 0
t = ( -16 + 6r)/8 = - 16/8 = - 2
3x + 7y = 14
Subtract 3x from both sides
7y = -3x + 14
Slope is equal to -3.
A linear equations is y= mx+b
m=slope
b= y- intercept, to help me think of what b is I try to figure out where a point is on the y axis so (0,x) that would be your point on the y- axis
:) hope this helps, if you have any questions please ask
It would be 13 meters, took the same test and it was the answer lol
good luck if you haven't
already taken it!!<span />
