Help please I don't understand!!!
2. For the system below:
a. Solve the system by the linear combination method. Show all work carefully.
b. Check your answer.
a - 2b = 2
a - b = 6
a- 2b = 2 one of the 2 "A" most be negative so they can cancer each other -a- b = 6 after the "A" cancel each other add the -2b with -b = -3b, then add 2 -------------- and 6 -3b=8 then you have to divide 8 by -3 = -2.6 -2.6 its b... now you have to solve for b step 1. a -2b = 2 step 2. a -2(-2.6)=2 step 3 a -5.3 = 2 then subtract -5.3 with 2 so that going to be 2 + 5.3 =7.3 then divide by a final answer (-2.5,-7.3) sorry its kinda hard to explained here, i hope you get the point :)