Solution to an equation

12 questions

1. What is the value of the expression 5x − 4 when x = 3?
2. What is the value of the expression 5x − 4 when x = −1?
3. The table of values for the equation y = 7 − 2x is shown. The missing number is ___.
4. To find the value of the expression 21 − 1.5a when a = 5, you should ___ the variable a for the number 5.
5. The graph shows 5 lines labelled A, B, C, D and E. Match each line to the equation for that line.
6. Match each fraction calculation to its answer.
7. Which of these best describes what a solution is?
8. Which of these equations have a solution when x = 4?
9. Which of these is a solution to the equation 3a + 5 = 2a + 2?
10. Which of these equations have no solution?
11. The graph shows the lines with equations y = 2 − 2x and y = 2x - 2. What is the solution to the equation 2x − 2 = 2 − 2x?
12. Use the graph to match each equation to its solution.

License: OGL