mariahljones08 mariahljones08

06-11-2020
Mathematics

contestada

When = 3, what will the value for y be for the equation - 4x + 5y = 18?

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charlie22062 charlie22062

06-11-2020

If x equals 3 then y must equal 1.2

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roukin3437student21 roukin3437student21

06-11-2020

Answer: y=6

-4(3)+5y=18

-12+5y=18

add 12 to both sides

-12+5y+12=18+12

5y=18+12

5y=30

divide both sides by 5

5y÷5=30÷5

y=30÷5

y=6

I hope this is good enough:

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