Determine whether the statement is sometimes, always, or never true.

If ax + b - 4 = b and a doesn't = 0 then x = 4/a

sometimes
always
not enough information provided
never

  always true

Step-by-step explanation:

Adding 4-b to both sides of the equation gives ...

  ax = 4

Then dividing by "a" gives ...

  x = 4/a

This is always true when a≠0.

77

step-by-step explanation:

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm