Is (–9, –7) a solution to this system of equations? 17x − 19y = –20

x + y = –16

Yes or no
I need help

(-9, -7)

Step-by-step explanation:

To solve this, i used the elimination method.

17x - 19y = -20

x + y = -16

multiply both sides by -17

and that will give you =

17x - 19y = -20

-17x - 17y =272

then i added the equations.

-36y = 252 (divide both sides by -36)

y = -7

now that you have found the y value, the next step is to find the x value and for that you need to pick an equation and solve it.

x + y = -16

x + (-7) = -16 (replace y with -7)

x = -9

(x,y) = (-9, -7)

good job you smart son of a gun you are smarter that einstein. 7

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get