Solve the simultaneous equations 3x+5y=7, 2x-3y=11

Multiply the first equation by 2, and the second by 3:

6x+10y=14

6x-9y=33

Subtract the second from the first:

19y=-19

solve for y:

y=-1

plug in to first equation and solve for x:

6x+10*(-1)=14

6x=24

x=4

JB

Related Maths GCSE answers

All answers ▸

Solve the following quadratic simultaneous equation: y = x + 4 and y = x^2 + 4x


Factorise x^2+3x+4 without the use of quadratic formula


expand and simplify 2(c+5)+5(c-7)


How to factorise simple quadratic equations?