(a)[2]
Simplify the expression $6r + 7s - r + 3s$.
(b)[1]
Bananas are $x$ cents each, and apples are $y$ cents each. Write an expression for the overall cost of $7$ bananas and $5$ apples.
Mathematics 4024 · O Level · Algebraic manipulation
Algebraic manipulation — practice question
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The simplified form is $5r + 10s$, and it can also be expressed as $5(r + 2s)$.” …
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