Unit 1

3 marks · Easy

Look at the algebraic expression 5y - 4 + 2y. The fraction is given.

(a)

Simplify the algebraic expression 5y - 4 + 2y.

[2 marks]

(b)

Write in its simplest form.

[1 mark]

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

Show answer

(a) 7y - 4

(b) \frac{1}{2}

Show mark scheme and worked solution

Marking points

M1 (a) · 1 mark · Demonstrates collection of like terms (5y + 2y = 7y).

A1 (a) · 1 mark · Gives final answer 7y - 4.

A2 (b) · 1 mark · Correctly simplifies to .

Worked solution

a) 5y + 2y = 7y, so the expression is 7y - 4.

b) (divide numerator and denominator by 7).