First you need to rearrange the equation so both numbers are on the same side :
x - 2y = -1
3x - 3y = 9
then times to mark out x or y
3x -6y = -3
3x -3y = 9
then minus them
-3y = -12
y = 4 x = 7
Answer: 5
Step-by-step explanation:
Answer:
for the first one it's 40 seconds
and for the second one I can't see the options but I I think it is 300
1/11 because it is the opposite reciprocal. And the new slope should be positive because it is the opposite.
