Solve the simultaneous equations 3x+2y=8 and 3y+4x=11

Equal out the x terms so 12x+8y=32 and 9y+12x=33Then subtract the first equation from the secondThis gives y=1Put this value into one of the equations so 12x+8=32Solve the equation giving x as 2.

EP

Related Maths GCSE answers

All answers ▸

How do you factorise x^2 -4 = 0?


Find the roots of the quadratic equation 2x^2 - 15x - 8


How do I solve a quadratic equation?


a) If x=4, work out 3(x^2). b) Solve 6x-3=x+11