Question

estimate the solution to the linear system

2x+y=-1
5x-3y=1

Answer 1

What would you do first?

Answer 2

you can use substitution or elimination. Which do you prefer?

Answer 3

elimination

Answer 4

first pick a variable to eliminate
so
which variable do you want to eliminate first?

Answer 5

y

Answer 6

to eliminate for y
you could multiply the first equation by 3 since 3 is the common number for 1y and 3y,
then add them
so

3(2x+y=-1)
5x-3y=1

6x+3y = -3
5x-3y = 1 (+)
-------------------
11x + 0y = -2
11x = -2-- divide both sides by 11
x = -2/11

Answer 7

do the same process as ^^ to solve for y
first eliminate the x
then solve for y

Answer 8

yeah thanks
\[thank you \]

Answer 9

No problem

Answer 10

\[FAN N MEDAL\]

Answer 11

:)

Answer 12

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