X=-3y-5 3x+9y=7 how can u solve this?

No solution

Step-by-step explanation:

x=-3y-5(1)

3x+9y=7(2)

from equation (2)

3(-3y-5)+9y=7

combine

-9y-15+9y=7

collect the like terms

-9y+9y=7-15

0=-8

No solution

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!