Question

5. solve the pain
a and y values
4x-y=70 5x-2y = 80.
lineas equations to fi
by elimination method,​

Answer 1

Answer:

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Answer 2

Answer:

5(4x-y)=70 = 20x-5y=350

4(5x-2y)=80 = 20x-8y=320

20x-5y=350

20x-8y=320

- + -

_____________

3y=30

y=10

5x-2y=80

5x-2(10)=80

5x-20=80

5x=60

x=12

y=10

x=12

Step-by-step explanation:

First make the number of same variable equal

then change the signs of the numbers and you'll get value of one and then put value of one variable in other then you'll get both the values