Solve the simultaneous equations (1) 2a - 5b = 11 (2) 3a + 2b = 7

(1)x2 4a - 10b = 22(2)x5 15a + 10b = 35(1) + (2) 19a = 57a = 3sub a = 3 into (1)2(3) - 5b = 116 - 5b = 11-5b = 55b = -5b = -1

HC

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations for x and y: 9x-2y=7 4x-2y=2


f is a function such that f(x)=2/(3x-3) Find the inverse function and ff^-1


In an office there are twice as many females as males. 1/4 of the females wear glasses. 3/8 of the males wear glasses. 84 people in the office wear glasses. Work out the number of people in the office.


x/(2x-3) + 4/(x+1) =1 [5 mark question]