Solve the pair of simultaneous equations {4x + y = 5, 3x - y = 2} using i) a graph and ii) an algebraic method
a) Draw graph and find points of intersection (will be done on whiteboard). b) Sum equations to get 7x=7, so x=1 and y=1.
JF
Related Maths GCSE answers
All answers ▸Write 16 × 8^(2x) as a power of 2 in terms of x
What grade did you achieve?
2x^2 - 16x + 32
Three different brands of rice are on sale, which brand provides the best value for money? Their prices are: Brand A) 250g for £3.21, Brand B) 400g for £5.30, Brand C) 750g for £8.80