Question

1.) Use substitution to solve the system of equations. Enter your answer as an ordered pair; example: (4, -5)

2x-y=2
3x-2y=11


2.)Use substitution to solve the system of equations. Enter your answer as an ordered pair; example: (4, -5)

x+y=17
y=x+7

Answer 1

so for example, why dont you try to make it easy and on number 1, the top equation, try to plug in 0 for x, and solve for y. or you can try 1, 2 or 3 and solve for the other variable.

Answer 2

hi

Answer 3

First, solve the first equation for a variable, so you get either x=something or y=something. Then, in the second equation, plug in for x or y (whichever one you solved for) what you got in the first equation. Then, solve for the only variable left.

Answer 4

I'll do the first one!
2x-y=2
3x-2y=11
So we would isolate y; so y=2x-1
Then plug in y=2x-1 into 3x-2y=11
So 3x-2(2x-1)=11
Then solve.
3x-4x+2=11
-x=9
So x=-9
Then plug that into the original
So 2(-9)-y=2
-18-y=2
y=-20
(-9,-20)

Answer 5

thanks for the help