Finding solutions to problems with two variables

Maths

Calculation problems

3f + g = 15. Which of the following pairs of numbers would work?

5a - 2b = 8. Which of the following pairs of numbers would work?

3c + 2d = 20. Which pair of numbers does does NOT work with this equation?

6m - 3n = 15. Which pair of numbers does does NOT work with this equation?

Which expression would represent the following problem:  The cooking time for roast beef is 30 minutes for every kg plus an additional 15 minutes.

Which expression would represent the following problem:  The cost of a photo album book is £2.50 for binding and printing with an additional cost of 15p per photograph.

Which expression would represent the following problem: A singer makes money from selling music. They pay a one-off fee of £25.00 to Oak-Tunes for marketing and distribution costs and receive 55p for each copy of the album sold.

Instead of writing 5 x a in an algebraic expression, what could I write instead?

This lesson will be removed by end of Summer Term 2025.

Finding solutions to problems with two variables

Lesson outcome

This lesson will be removed by end of Summer Term 2025.