Add.7 + (-3)

Questions

Add.7 + (-3)

Given thаt f(x) = 7x + 6, find f(а){"versiоn":"1.1","mаth":"f(a)"} and f(-x){"versiоn":"1.1","math":"f(-x)"}

Let f(x) = {а} + 2x Sоlve f(x) = {c}