How do you solve 3x + 2 ≤ 1?

1 Answer
Sep 1, 2015

x <= -1/3

Explanation:

Things you can do with expressions in an inequality which maintain the inequality:

  • Add the same amount to each expression
  • Subtract the same amount from each expression
  • Divide each expression by the same amount provided the amount is greater than zero
  • Multiply each expression by the same amount provided the amount is greater than zero

Therefore, given
color(white)("XXX")3x+2 <= 1

We can subtract 2 from both sides:
color(white)("XXX")3x <= -1

and, we can divide both sides by 3
color(white)("XXX")x <= -1/3