Question

Describe how to solve the inequality 3x+4<13 using algebra tiles

Answer 1

The solution is x < 3.

Solution:

The given expression is 3x + 4 < 13.

To solve the given inequality.

3x + 4 < 13

Subtract 4 tiles on both sides of the inequality.

⇒ 3x + 4 – 4 < 13 – 4

⇒ 3x < 9

Divide by 3 tiles on both sides of the inequality.

⇒ $\frac{3x}{3} =\frac{9}{3}$

⇒ x < 3

Hence the solution is x < 3.