cohenlewin602 cohenlewin602

28-04-2021
Mathematics

contestada

What is the solution to this system of equations?

18x - y = - 42

y= (-43x+34)/20

Respuesta :

juan804valderrama juan804valderrama

28-04-2021

Answer:

X=-2

Step-by-step explanation:

equation a)

-y=42+18x

equation b)

y= (-43x+34)/20

Solution

42+18x= (-43x+34)/20

20(42+18x)=-43x+34

840+360x = -43x+34

360x+43x=34-840

403x= -806

x= -(806/403)

x= -(2)

x= -2

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