louis6721 louis6721

13-03-2021
Mathematics

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Question 7 using substitution if you don’t mind. Help please.

Question 7 using substitution if you dont mind Help please class=

Respuesta :

evrimesa evrimesa

13-03-2021

y= -2 and x= 1 according to the solution in the picture

Ver imagen evrimesa

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thebecks thebecks

13-03-2021

Answer:

x = 1

y = -2

Step-by-step explanation:

3x - 2y = 7

4x + y = 2 then y = 2 - 4x

substitute for y:

3x - 2(2 - 4x) = 7

reduce:

3x - 4 + 8x = 7

11x = 11

x = 1

y = -2

Answer Link

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