Solve the system of linear equations by substitution. Check your solution.

X = -5

y = 1

Step-by-step explanation:

plug in -3x - 14 for y

x + 4 ( -3x - 14) = -1

x - 12x - 56 = -1

-11x = 55

x = -5

plug in for x

-3(-5) - 14 = y

15 - 14 = y

y = 1

plug in and it proves equal

hi, i am not sure about this one but i think its d,

hope this !

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1