Student resources Simplifying page 5

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The algebraic expression for the following statements is:

a	A number \(x\) is subtracted from 20
	\(20-x\)	\(x-20\)	\(-x-20\)
b	A number \(p\) is multiplied by 7 and then 10 is added:
	\(p+10\times 7\)	\(7p+10\)	\(7(p+10)\)
c	A number \(k\) is divided by 10 and 7 is subtracted from the result:
	\(\dfrac{10}{k}-7\)	\(\dfrac{k-7}{10}\)	\(\dfrac{k}{10}-7\)
d	A number \(x\) is multiplied by 2 and then subtracted from 6:
	\(2x-6\)	\(6-2x\)	\(2(6-x)\)

When simplified by expanding brackets and collecting like terms,