MA-3

Simplifying linear expressions

Lower Sec Maths · Secondary 1 · Hard · Simplifying linear expressions

Mary has

(4x + 9y)

stickers. Ben has 2 times as many stickers as Mary, and Chloe has 3 times as many stickers as Ben.

(a) Find, in simplest form, the number of stickers Ben and Chloe each have in terms of

x

and

y

.
(b) Find the total number of stickers the three children have in terms of

x

and

y

Ben: $8x+18y$ , Chloe: $24x+54y$ , Total: $36x+81y$
Ben: $8x+9y$ , Chloe: $24x+27y$ , Total: $36x+45y$
Ben: $4x+18y$ , Chloe: $12x+54y$ , Total: $20x+81y$
Ben: $8x+18y$ , Chloe: $16x+36y$ , Total: $28x+63y$

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