13.
14.
15.
2
Determine the best method to solve the system of equations:
5x-2y=4 and 2x + 2y = 8
(A) substitution
(B) elimination using addition
(C) elimination using subtraction
(D) elimination using multiplication
When solving the system of equations x + 2y = 15 and 5x + y = 21, which
expression could be substituted for x in the second equation?
(A) 15-2y
(B) 21-5x
(C) 15
2
x
(D) 21-2y
5
Use elimination to solve the system 4x+6y= 10 and 2x+5y = 1 for x.
(A) 11
(B)
5호
-글
(C) -2
(D) -2
cont
American School-Lansing, IL
1121-1