12x 2=12x-5n. no solution, one solution, or infinite solution.

3× __ -2=15 7 2× __+1=7 5 7× =22 15 5× __+10=2 8 × __+4=20 6 × =10 3 × __+2=8 6 × __+8=8 9 × __+7=20 6

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove