Name: SAT Math Help & School Math Mastery
Availability: InStock

A.

System: $2 x + y = 4$ and $4 x + 2 y = 6$ . Solutions: No solution.

B.

System: $x - 2 y = 3$ and $3 x - 6 y = 9$ . Solutions: $(r, 2 r - 3)$ for any real number $r$ .

C.

System: $3 x + 4 y = 10$ and $6 x + 8 y = 20$ . Solutions: $(r, - \frac{3}{4} r + \frac{5}{2})$ for any real number $r$ .

D.

System: $x + y = 5$ and $x - y = 1$ . Solutions: $(3, 2)$ .