Solve the system by substitution.
y = –6x – 7
y = -7x

Use continuity to evaluate the limit. lim x→16 20 + x 20 + x step 1 consider the intervals for which the numerator and the denominator are continuous. the numerator 20 + x is continuous on the interval the denominator 20 + x is continuous and nonzero on the interval

Asap 25 pts + brainlest to right/best answer

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=