Solve these simultaneous questions: 2y+x =8 and y-2x = -1.
x = 2 y = 3
CL
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All answers ▸Expand and simplify (x − 4)(2x + 3y)^2
The mean mass of a squad of 19 hockey players is 82 kg A player of mass 93 kg joins the squad. Work out the mean mass of the squad now.
How do you factorise?
Marcin buys 7 rulers and 15 crayons for £7. A ruler costs 12p more than a crayon. Find the cost of one crayon.