Question

Use the substitution method to solve the following system of equations.

8x + y = 10
6x + 5y = -1

Answer 1

You need to substitute for X and Y.

Answer 2

how

Answer 3

@TrashMan914 I am not great at substitution would you mind helping her and I?

Answer 4

yes. please help

Answer 5

Calculated something wrong. Going to redo this problem.

Answer 6

okayy thank you

Answer 7

hello

Answer 8

hes working it out I don't know this to well

Answer 9

Multiply eqn 1 with 5 and then subtract eqn 2 from it.
40x + 5y=50
- 6x + 5y=-1

Which results to 34x=51
=> x=3/2

Now substitute the value of x in any eq. say 2..

6*(3/2) +5y=-1
=>9+5y=-1
=>5y=-10
=>y=-2

So, x=3/2 and y=-2

We may easily verify and check the answers

Answer 10

ohhhhhh i understand now

Answer 11

wait no.

Answer 12

then?

Answer 13

idk.

Answer 14

im so lostt

Answer 15

Where's the difficulty you are facing? Feel free to ask