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 ▸

What is meant by 'the degree of a polynomial'?


Given that 346 × 27 = 9342 , work out 34.6 × 2.7


Given a right-angled triangle with an angle of 35 degrees and an Opposite side of 12cm, calculate the length of the hypotenuse to 3 significant figures.


Please sketch and factorize the quadratic 3x^2+10x+3.