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

User Joshka
by
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2 Answers

4 votes

Answer:

(-11, -6).

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.

User Gyandeep Sharma
by
4.5k points
4 votes

Answer:

6x+2y=-78

Explanation:

8x-3y=-70

-2x+5y=-8

6x+2y=-78

User Bill Stidham
by
4.1k points