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3 years ago

How do you solve 8x-3y=-70 and -2x+5y=-8 using the elimination method please show work.

Mathematics

2 answers:

Black_prince [1.1K]3 years ago

8 0

Answer:

(-11, -6).

Step-by-step explanation:

8x-3y=-70

-2x+5y=-8 Multiply this equation by 4:

-8x+20y=-32

Now add this last equation to the first equation:

17y = -102 - we see that we have eliminated x.

y = -102/17

= -6.

Now plug y=-6 in the first equation to get x:

8x-3(-6)=-70

8x =-70 -18

8x =-88

x = -11.

lora16 [44]3 years ago

3 0

Answer:

6x+2y=-78

Step-by-step explanation:

8x-3y=-70

-2x+5y=-8

6x+2y=-78

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Whatever you do to the denominator, you have to do to the numerator too. So

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