15x + 60 < 240

h e l p

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 - We subtract on both sides to get rid of the extra numbers, so at the end of the equation we'll be able to get x alone. To do so you have to do the opposite of what you see.

Equation at the end of Step 1:

 - Since 15 is positive, the inequality direction remains the same.

Equation at the end of Step 2:

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