3x − 2y = −2
x + 3y = 14
To solve this system by substitution, which expression could be substituted for x?
A) 3y + 14
B) 3y − 14
C) −3y + 14
D) −3y − 14

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?