SOLUTION: How do you solve this by using the addition or subtraction method? 8a+5b=9 2a�5b=�4

Question 825905: How do you solve this by using the addition or subtraction method? 8a+5b=9 2a�5b=�4
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
8a + 5b = 9
2a � 5b =�4
--------------Addition eliminates b, find a
10a = 5
a = 5/10
a = .5
:
Find b using the 1st equation
8(.5) + 5b = 9
4 + 5b = 9
5b = 9 - 4
5b = 5
b = 5/5
b = 1
:
Check solutions using the 2nd equation
2(.5) - 5(1) = -4
1 - 5 = -4

RELATED QUESTIONS
How do you solve by the addition-or-subtraction method. 12a-5b=18... (answered by jojo14344)

can you please help me solve by the addition-or-subtraction method: (((12a-5b=18... (answered by checkley77)

solve by the addition-or-subtraction method: 12a-5b=18 and... (answered by ewatrrr)

6a - 5b = 9 2a + 5b = 23 slove this system of equations using the addition... (answered by Alan3354)

How do you solve by the addition-or-subtraction method? 2x+y=18... (answered by Mathtut)

how do solve this using the elimination method 3a+5b=9 (answered by mananth)

Please help me how do you solve this problem? 1/2a+4b=11 a-5b=-4 I have to do this (answered by kapilsinghi)

I'm 46 and am trying to refresh my algebra.... How would I solve this by using... (answered by Gogonati,richwmiller)

This is a last Subsitution question, but this one says solve by either ;addition or... (answered by checkley71,oscargut)