Answer:
x=5,y=-2 or (5,-2)
Step-by-step explanation:
Here is the system of equations:
2x+y=8
y=x-7
Since we have y isolated by itself in the second equation, let's use substitution.
Substitute x-7 as y into the first equation
2x+x-7=8
combine like terms
3x-7=8
add 7 to both sides
3x=15
divide by 3
x=5
now substitute 5 as x into one of the equations to find the value of y
for example let's use y=x-7
y=5-7
y=-2
so x=5, y=-2
as a point it's (5,-2)
Hope this helps! :)
