So y+x=2
x-y=4
one way is subsituteion where yousubisutte one of the number for another exg
x-y=4
add y to both sides
x=y+4
subsitute y+4 for x in x+y=2
y+4+y=2
2y+4=2
subtract 4 from both sides
2y=-2
divide both sides by 2
y=-1
subsiutte
x+y=2
x-1=2
x=3
or elimination
x+y=2
x-y=4
add the two equations and cancel the y terms
x+x+y-y=2+4
2x=6
divide both sides by 2
x==3
subsitute
x+y=2
3+y=2
y=-1
so x=3
y=-1
Answer:
7 x 3/9 = 21/9 = 2.33
11 x 2/3 = 22/3 = 7.33
4/9 x 3/8 = 4/9 x 3 / 8 = 4/3/8 = 1/6
7/9 x 4/5 = 7
/9 ⋅ 4/5 = 28/9/5 = 28/45
1 1/15 x 1/3 = 0.35
Answer:
2nd quad 5,7
hope this helps (:
Step-by-step explanation:
A I think I’m sorry if I’m wrong haven’t done this in a while