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Consider the system of equations
        5x + y = 31

3x + 4y = -37

 

Take your expression for y from part (a), and substitute it into the second equation. Solve for x and y.
 

Enter your answer as the ordered pair(x,y)

 May 12, 2021
 #1
avatar+1940 
+1

5x + y = 31

y = 31 - 5x

 

3x + 4y = -37

3x + 4(31 - 5x) = -37

 

Solve for x and then you can get y. :))

 

=^._.^=

 May 12, 2021
 #2
avatar+32833 
+2

5x + y = 31    so   y = 31 - 5x      sub this into the second equation for 'y

3x  +4( 31-5x) = - 37

- 17x + 124 = - 37

- 17x = -161

x= 9.47     Use this value of 'x' in either of the equations to calculate the value of 'y'

 May 12, 2021

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