SOLUTION: CAN SOMEONE PLEASE HELP ME AND SHOW ME HOW TO WORK OUT THESE PROBLEMS. I DID THEM ON MY OWN AND MY PROFESSOR SAID MY ANSWERS WAS WRONG TWICE AND I DON'T KNOW WHAT I AM DOING WRONG.

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Question 550101: CAN SOMEONE PLEASE HELP ME AND SHOW ME HOW TO WORK OUT THESE PROBLEMS. I DID THEM ON MY OWN AND MY PROFESSOR SAID MY ANSWERS WAS WRONG TWICE AND I DON'T KNOW WHAT I AM DOING WRONG. THANKS ALOT.
SOLVE SYSTEM OF EQUATIONS:
1) 2A-B= -9
+ 3A+B= -6
SOLVE FOR X
2)3X+2=5X-8
FIND THE VALUE OF M
3) 1/3M-5>2M-15
SOLVE THIS EQUATION
4) 3/5N-5=5N+39
WHAT IS THE "Y" INTERCEPT FOR THE LINE OF THE EQUATION:
5) 6X+3Y=9
Answer by mathstutor458(57) (Show Source):
You can put this solution on YOUR website!
1.2A-B=-9
3A+B=-6
--------
5A =-15 (ADD BOTH EQUATIONS)
=>A = -15/5 = -3 --->ANSWER
2. 3X+2=5X-8
=>2+8 = 5X-3X
=>10 = 2X
=> X=10/2=5 -->ANSWER
3. 1/3(M-5)>2M-15 (PLEASE CHECK BRACES IN YOUR QUESTION )
=>M-5>6M-45
=>45-5>6M-M
=>40 > 5M
=>8 > M -- >ANSWER
4.3/5(N-5)=5N+39 (PLEASE CHECK BRACES IN YOUR QUESTION)
=>3N-15=25N+195
=>22N=-210
=>N=-210/22=-105/11
5. 6X+3Y = 9
TO FIND Y-INTERCEPT PUT X=0.
=> 6*0 + 3Y =9
=>3Y=9 =>Y=3 -->ANSWER