Question

Solve the system of equations: y + 4x = 8 and 5x + 2y = 13.
Answer

(-1, 4)

(1, 4)

(1, 12)

(-1, 12)

Answer 1

\[2y+8x=16\] \[(2y+8x)-(2y+5x)=16-13\] \[3x=3\] \[x=1\] \[2y+8=16\]\[y=4\]

Answer 2

Thnx

Answer 3

No problem

Answer 4

can you help me with another one?

Answer 5

Sure thing

Answer 6

Solve the system of equations: 2x + 2y = 6 and 12 = 2y – x.
Answer

(2, 5)

(-4, 5)

(-2, 5)

(-2, 7)

Answer 7

What's the second equation?

Answer 8

Solve the system of equations: 2x + 2y = 6 and 12 = 2y – x.

Answer 9

\[2x+2y-2y=6-12\] \[2x=-6\] \[x=-3\]\[y=6\]

Answer 10

its not one of the options though

Answer 11

I can't see your second equation. All I see is 12=2y and then a whole bunch of ? marks

Answer 12

Solve the system of equations: 2x + 2y = 6 and 12 = 2y – x.
Answer

(2, 5)

(-4, 5)

(-2, 5)

(-2, 7)

Answer 13

Perhaps you could type out the second equation

Answer 14

solve the system of equations 2x+2y=6 and 12 = 2y - x

a) (2,5)
b) (-4,5)
c) (-2,5)
d) (-2,7)

Answer 15

:) much better

\[(2x+2y)-(2y-x)=-6\] \[2x-(-x)=2x+x=3x=-6\]\[x=-2\] \[12=2y-(-2)\] \[y=5\]

Answer 16

so c?

Answer 17

Correct

Answer 18

Thank you!

Answer 19

Glad I could help

Answer 20

i only have 2 more left. but i can ask someone else. if u dont want to. once again thnx!

Answer 21

I don't mind

Answer 22

do u want to?

Answer 23

Sure, why not

Answer 24

Solve the system of equations 10x + 7y = 49 and 10y -x = 70

a) No solution
b) (0,7)
c) (7,0)
d) (-7, 1)

Answer 25

x=0 y=7

Answer 26

Last one,

Solve the systems of equations: 2x + 9y = 0 and 3x +5y = 17

a) (9, -2)
b) (-9,-2)
c) (9,2)
d) No solutions

Answer 27

\[-2x/9=y\] \[3x+5(-2x/9)=17\] \[27x-10x=151\] \[17x=151\] \[x=9\] \[18+9y=0\] \[y=-2\]

Answer 28

Thank u so much! i appreciate it!

Answer 29

You're very welcome

Answer 30

@abb0t