Answer:
x=7
Step-by-step explanation:
3/7(7)+5=8
3/7x+5=8
Subtract 5 from each side of the equation.
3/7x=3
Divide each side by 3/7
X=3/ (3/7)
To divide by a fraction, we Can flip the fraction, (7/3) and multiply.
X= 3(7/3)
X=21/3
X=7
(-1,1)
All you have to do is plug it in the equation:
(x,y)
For (-1,1)
1=2(-1)+1
Simplify:
1=-1 but you know that 1≠-1 so (-1,1) is not it
For (3,7)
7=2(3)+1
7=7
For (-3,-5)
-5=2(-3)+1
-5=-5
For (0,1)
1=2(0)+1
1=1
