3 years ago

3x-5y=60 4x+5y=-4 what is the system of linear equation

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

4 0

(3x-5y=60)

4x+5y=-4

3(8)-5(7.2)=60

4(8)+5(-7.2)=-4

7x=56

÷7. ÷7

x=8

3(8)-5y=60

4(8)+5y=-4

32+5y=-4

-32. -32

5y=-36

÷5. ÷5

y=7.2

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