Question

Solve x/4 + 12 < 42.
is that x/4?

Answer 1

so the original problem is

\[\large \frac{x}{4} + 12 < 42\]

Answer 2

so I subtract 12 from both sides

Answer 3

and that is 30

Answer 4

then I get confused woth the x/4

Answer 5

i see, so you got to x/4 < 30 ?

Answer 6

yes

Answer 7

what you do is multiply both sides by 4

Answer 8

because this undoes the division by 4

Answer 9

it's like how you subtracted 12 from both sides (to undo the +12)

Answer 10

okay so the anser is 30 x 4?

Answer 11

120

Answer 12

yep x < 120