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3 years ago

9

Solve the system of equations by any method.

2 answers:

lana [24]3 years ago

6 0

I'll use substitution. I think that's the easiest.

11x + 8y = -16
x = 4y + 10

Plug in: 11(4y + 10) + 8y = -16

Simplify: 44y + 110 + 8y = -16

Simplify: 52y + 110 = -16

Subtract from both sides: 52y = -16 - 110

Simplify: 52y = -126

Divide: y = -126/52

Simplify: -2.42 or -2 and 11/26'

I could continue to solve for x, but we can see your options and D is the only one with this value for y.

Fofino [41]3 years ago

4 0

The answer is <span>C. (4/9, -2 7/8)</span>

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