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 ▸

Simplify 24ab^2 / 6b


The equation of line A is y = 6x -4. The equation of line B is 2y - 12x + 14 = 0. Are these two lines parallel?


Solve the following simultaneous equations: x^2-y^2=9, x - y = 1


Solve the simultaneous equations: 3x+7y=18 and x+2y=5