Answer:
(7,5)
Step-by-step explanation:
A system of equations is 2 or more equations for which the same x,y solution exists. We can solve the system in three ways: elimination, substitution, or graphing. Substitution can be used by substituting the value of one variable into the equation.
Because y=x-2, we can substitute x-2 into y in x+y=12.
x+(x-2)=12
x+x-2=12
2x-2=12
2x-2+2=12+2
2x=14
x=7
We now substitute x=7 into y=x-2.
y=(7)-2
y=5
