Question

What is the value of the y variable in the solution to the following system of equations?
13x - 6y = 20
7x + 4y = 18

2

1

-2

-1

Answer 1

So you plug in those numbers into the y's in the equation and solve for x, then when you have x solved, plug that answer into the original equation's x's and then solve for y

Answer 2

Try substitution to solve.

Answer 3

hey im really tired and this is a pre chapter test so i just need and answer cause im stuck

Answer 4

Use a term to substitute into equation on the bottom (or top).

Answer 5

13x - 6y = 20----(1)
7x + 4y = 18---- (2)

in equation (2)
7x + 4y = 18
7x=18-4y
x=18-4y/7

put x in equation (1)

13(18-4y/7)-6y=20
234-52y-42y=20*7
234-94y=140
94y=234-140
94y=94
y=94/94
y=1

Answer 6

ok tahanks

Answer 7

My Pleasure.

Answer 8

can u help witch one more

Answer 9

i will try.

Answer 10

What is the value of the x variable in the solution to the following system of equations?
2x + 3y = 1
3x - 4y = 10

2

-1

1

-2

Answer 11

2x + 3y = 1---(1)
3x - 4y = 10---(2)

in equation (1)
3y=1-2x
y=1-2x/3

put in equation (2)

3x-4(1-2x/3)=10
9x-4+8x=30
17x=30+4
x=34/17
x=2

Answer 12

thanks i really understand now

Answer 13

My Pleasure.