Question

Please help choose the best answer 4x < 48

A: x > 12
B: x < 12
C: x = 12
D: x < 12

Answer 1

Divide both sides by 4 to isolate x. We divide to undo the multiplication done to x. Note how 4x is the same as 4*x = 4 times x where x is a placeholder for a number.

If we divide both sides by 4, then we get...
4x < 48
4x/4 < 48/4
x < 12

Answer: Choice D) x < 12