What equation shows y=3x-1/5 in standard from 15x+5y=−1

15x−5y=1

5x−15y=1

5x−15y=−1

15x-5y=1

Step-by-step explanation:

y-3x=-1/5

multiply each side by 5

5y-15x=-1

15x-5y=1

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

the olimpics is not going to wokk out

step-by-step explanation: