Question

Solve the system by using substitution:
x - y = 5
2x+y = 13




Select one:


a. (6,-1)

b. (1,6)

c. (-6,-1)

d. (6,1)

Answer 1

@PatrickJordon help

Answer 2

Ok, What you Want to do is plug in each number for "x" and "y", i did that for you and here's what i got::
X-Y=5
(6)-(1)=5
2x+Y=13
2(6)+(1)=13
So that makes your answer D (6,1)

Answer 3

thank you I don't know why but everyone else was giving me confusing equations

Answer 4

Substitute The Numbers In For The Letters Much Easier @Luigi0210

Answer 5

here is another one

Answer 6

Use the elimination method to solve the system of equations:
2a+3b=12
5a -3b=9




Select one:


a. (2,-3)

b. (-3,2)

c. (3,2)

d. (2,3)

Answer 7

Bah, idk this one haha

Answer 8

@amistre64 help

Answer 9

add them up and it'll make it so much simpler

Answer 10

substituting in for x and y IS a form of substitution :)

Answer 11

Ok its C i missed typed it:
2a+3b=12
2(3)+3(2)=12
AND
5a-3b=9
5(3)-3(2)=9

Answer 12

but this is elimination method................I'm confused

Answer 13

dunno if thats right but i tried xD

Answer 14

ok

Answer 15

2a+3b=12
5a -3b=9
------------------------------
7a=21
a=3
------------------------------
2(3)+3b=12
6+3b=12
3b=6
b=2
-----------------------------------

Answer 16

# I was Right :)