3 years ago

System by elimination 2x - y = -3 -2x - 8y = 12

Mathematics

1 answer:

topjm [15]3 years ago

7 0

Answer:

x= -2 y= -1

Step-by-step explanation:

stack the 2 equations on top of each other and add them together

the 2x and -2x cancel out and you are left with -9y=9

this gives you y= -1

you plug the y value into one of the equations:

2x - (-1) = -3

2x+1 = -3

2x= -4

x= -2

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3 years ago

System by elimination 2x - y = -3 -2x - 8y = 12​

System by elimination 2x - y = -3 -2x - 8y = 12