The answer to this is .15%
Solve for y in 3x+7=y
y=7−3x
Substitute y=7−3x
y=7−3x into 8x−3y=30
8x−3y=30.
17x−21=30
Solve for x
x in 17x−21=30
17x−21=30.
X=3
Substitute x=3 into y=7−3x
y=-2
Therefore,
x=3
y=−2
27.5 and 22.5 are the two numbers
See attached PDF. (The censor thinks there are some unseemly words in there.)
I would like to have a patient and good teacher,who is not angry or stressed,or give us lots of homeworks.
Hope I helped u :)
