Question

a Student solved the equation -5x+2x+2=20-6x and got x=6. His work shown below is his check for this problem Which statement best applies to the work shown?

-5(6)+2(6)+2=20-6(6)
-30+12+2=20-36

-16=-16
a. his check does not work, thus x=6
b. the work in his check is all correct, thus x=-16
c. the work in his check is correct, thus x=6

Answer 1

c. the work in his check is correct, thus x=6