Given 2x+y=8 and 3x-y-17, Sven solved the system of equations by substitution. The
result of each step of his solution is shown.
2x+y=8
iy-8-2x
7
3x-y-17
3x-8-2x-17
x-8=17
x=25
Part A
Circle the step in which Sven's first error occurred. Describe the error.
Part B
Solve the system of equations correctly. Show your work.
The solution is (,)
