Like terms — Grade 7 Accelerated, what it means and where it is taught
Terms with exactly the same variable part; only these can be combined.
Taught in Grade 7 Accelerated.
Where it is taught
Practise this idea
4 questions in the course bank use Like terms, in Representing Other Algebraic Relationships, Multi-Step Equations, Polynomial Operations.
Problem 1
Simplify 4(x + 2) + 3(x - 5).
Worked answer
7x-7
4x + 8 and 3x - 15
4x + 3x = 7x
8 - 15 = -7
7x - 7
Problem 2
Solve 5x + 2x - 6 = 22.
Worked answer
4
7x - 6 = 22
7x = 28
x = 4
Problem 3
Simplify (3x + 5) + (2x - 8).
Worked answer
5x - 3
3x + 2x = 5x
5 - 8 = -3
Problem 4
Simplify (x2 + 4x) + (3x2 - x).
Worked answer
4x^2 + 3x
x2 + 3x2 = 4x2
4x - x = 3x