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3 years ago

3х – 8y = 34 7х + 4у = -34 Solve by elimination Y and x Please show steps ):

Mathematics

1 answer:

garri49 [273]3 years ago

4 0

Answer:

The answer would be (-2, -5)

Step-by-step explanation:

3x - 8y= 34

2(7x + 4y = -34)

3x - 8y=34

14x + 8y= -68

----------------------

17x= -34 divided by 17

x = -2

3(-2) -8y= 34

-6 -8y =34 add 6

-8y= 40 divide by -8

y = -5

if you want to check the answer replacing -2 for x and -5 for y

7(-2) + 4(-5)= -34

-14 + (-20) = -34

-34 = -34

I hope this help sorry I'm not good explaining

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3 years ago

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Step-by-step explanation:

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3 years ago