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3 years ago

Solve the system using elimination. -2x+6y=18 -4x-6y=18

Mathematics

2 answers:

Serga [27]3 years ago

8 0

Line each equation up and add together

oksano4ka [1.4K]3 years ago

3 0

Answer:

(-6,1)

Step-by-step explanation:

-2x+6y=18

-4x-6y=18

Add the two equations together to eliminate y

-2x+6y=18

-4x-6y=18

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

-6x = 36

Divide each side by -6

-6x/-6 = 36/-6

x = -6

Now we need to find y

-2x +6y = 18

-2(-6) +6y = 18

12 +6y = 18

Subtract 12 from each side

12-12 +6y = 18-12

6y = 6

Divide by 6 on each side

6y/6 = 6/6

y = 1

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