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2 years ago

SOLVE THE SYSTEM OF EQUATIONS USING ELIMINATION.The equation is 4x+y=-5 and -2x+2y=6 (show work pls )

Mathematics

1 answer:

taurus [48]2 years ago

4 0

Answer:

y=1.4

x=-1.6

Step-by-step explanation:

Hi, to solve this system of equations we have to multiply the second equation by 2, and then subtract the first equation to the second one:

4x+y=-5

-2x+2y=6

-4x+4y=12

4x+y=-5

__________

5y =7

y = 7/5 = 1.4

Replacing y=1.4 on any equation:

4x+1.4=-5

4x = -5-1.4

4x= -6.4

x=-6.4/4

x=-1.6

Feel free to ask for more if needed or if you did not understand something.

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