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mario62 [17]
3 years ago
8

Solve for x and y (use elimination or substitution). Show work.

Mathematics
2 answers:
inessss [21]3 years ago
6 0

We know if we combine 7x + 3y -1 and x we get 180 degrees

7x+3y-1+x=180

8x-3y=181


We also know that 7x+3y-1=10x-7y+9

-3x=-10y+10

-3x+10y=10


If we combine the 2 equations:

8x-3y=181

-3x+10y=10


24x-9y=543

-24x+80y=80

71y=623

Now you can do it from here. :)



Verdich [7]3 years ago
3 0
I hope it can help you hehe. dint forget give me brainlist hehe

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