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22-06-2021
Mathematics

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Solve the following system of equations by substitution. PLEASE HELP!

Solve the following system of equations by substitution PLEASE HELP class=

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

22-06-2021

Answer:

(1,-1)

Step-by-step explanation:

y = -1

5x+7y = -2

Substitute the first equation into the second

5x + 7(-1) =-2

5x -7 = -2

Add 7 to each side

5x-7+7 = -2+7

5x= 5

Divide by 5

5x/5 = 5/5

x =1

(1,-1)

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