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Juliette [100K]
3 years ago
9

How do I solve this Y= -8x+56 2x+2y=56

Mathematics
1 answer:
Deffense [45]3 years ago
7 0
Y  = -8x + 56
2y= -2x + 56 (you want to get rid of one variable then solve for it then solve for                         the other)

-2(y=-8x+56)
2y=-2x+56

-2y=16x-112
2y=-2x+56     (see how multi the first equation by -2 gets the y's to cancel so                     can solve for x. Now sum up the equations)
0= 14x-56
x= 4

now plug x=4 into any original equation Y=-8x+56
Y = -8(4)+56
Y=24

hope this helps

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