3 years ago

PLEASE PLEASE HELP SOLVE THE EQUATION USING ELIMINATION 3x+8y=-5 -2x+2y=18

Mathematics

1 answer:

frosja888 [35]3 years ago

5 0

Answer:

Step-by-step explanation:

3x+8y=-5

-2x+2y=18

Ok, so you want to get either x or y to cancel out so lets multiply the first equation by 2 and the second equation by 3.

6x+16y=-10

-6x+6y=54

Now x can cancel out. The new equation is:

22y=44

y=2

Now you input 2 into one of the original problems.

-2x+2(2)=18

-2x+4=18

Now subtract 4 from both sides.

-2x=14

Divide

x=-7

Now check your answer.

-2(-7)+2(2)=18

14+4=18

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