Which quadratic equals is equivalent to (x-4)^2 -(x-4)-6=0

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}