Multiply the first equation by -1
-3x-y=-4
2x+y=5
Add them up
-x=1
So x=-1
And y=7
So the first option is correct
Let x = the unknown number to get x = 6
When adding fractions you need to get common denominators then you multiply too times bottom and then boom add and there you go
Answer:
x = 3
Step-by-step explanation:
reverse foil the denominator and find the largest solution.
x-3(x+1)
3 is the largest solution