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3 years ago

8

2x+5y =-20, 2x-3y=28

2 answers:

RideAnS [48]3 years ago

6 0

Answer:

x=5 and y=-6

Step-by-step explanation:

2(5) + 5(-6) = -20 (so true)

and

2(5) - 3(-6) = 28 (true)

Wittaler [7]3 years ago

4 0

Answer:

2x=-20-5y

divide both sides by 2

x=-20-5y/2

2x-3y=28

-3y=28-2x

divide both sides by -3

y=28-2x/-3

Step-by-step explanation: FOR THE FIRST ONE, I MADE X THE SUBJECT AND FOR THE SECOND ONE I MADE Y THE SUBJECT.

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3 years ago

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Ratling [72]

we are given

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we can arrange like terms

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3 years ago