Substituting A Given Value For A Variable

Match the Solution

Work Time

Match the Solution

  • For which equation or inequality is x = 4 a solution?

x + 5 = 3x + 1

+ 5 > 3+ 1

+ 5 < 3+ 1

  • Check your answer by using the Balance Scale X interactive. (Ignore the instructions on the interactive and follow these steps.) Represent the expression x + 5 on the left side and the expression 3+ 1 on the right side. Then subsitute 4 for each x on the scale.

INTERACTIVE: Balance Scale X