Solve these simultaneous equations Using the algerbraic method

1 answer:

4 0

The second equation equals: 3X +18y=60 (Both sides times 3)
And then use this new equation minus the first equation, you will get:
Left side: (3X +18y) - (3x+6y)
Right side: 60-30
So 12y=30
Then y=2.5
Take y value into one of the three equations, you will get x=5

or

in another easier way:

Directly minus the second equation from the first one:
(3x+6y) -(X+6y)=10
2X = 10
X = 5
Get Y is easy, Y=2.5

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alexgriva [62]

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3 years ago

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slavikrds [6]

Answer:

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Step-by-step explanation:

We first find the circumference of the semi-circle segment:

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Debora [2.8K]

Answer:

Yes

Step-by-step explanation:

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3 years ago

Which expression is equivalent to 5y^3 over (5y)-^2

Flura [38]

Answer:

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