sarahm381 sarahm381

25-09-2020
Mathematics

contestada

Solve the system by substitution.
8x + 7y = -47
4y – 1= x(help me please)

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GreenFIRE624 GreenFIRE624

25-09-2020

8(4y -1) +7y = -47
32y + 7y - 8 = -47
39y = -39
y = -1

Answer Link

Аноним Аноним

25-09-2020

Answer:

Equation 1

Y= - 8x+47/7

X= -7y+47/8

Equation 2

Y= x+1/4

X= 3y

Answer Link

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