Y=-x+7
y=2x-2
and then the second problem is
y-1=2x
y+2x=5
they are substitutional problems! show work it's greatly appreciated!

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)