xbolden0239 xbolden0239

19-02-2021
Mathematics

contestada

Solve the system of equations using elimination. SHOW WORK!!!!!!!!!!!!!

15q – 4r = 62
5q + 8r = 86

Respuesta :

mommylovesyou mommylovesyou

19-02-2021

q= 6

r= 7

work--

Multiply 1st column by -2:

-30q+8r=-124

5q+8r=86

Subtract 2nd column from the first column:

-35q= -210

Solve for q:

q=6

Subtract q=6 by any of the two equations, so:

-30q+8r=-124

-30*6+8r=-124

Solve for r:

r=7

Answer Link

zoeyy2005 zoeyy2005

19-02-2021

That person is correct! Good luck

Answer Link

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