1) 3x + y = 11 2) 2x + y = 8

Subtract 2) from 1), we get x = 3. This means that y must be 2.

DB

Related Maths GCSE answers

All answers ▸

how do you factorise a quadratic where there is a number in front of the x squared?


Expand and simplify (6x+9)(4x+7)


Calculate the value of 2^(–3) as a fraction in its simplest form.


Solve: 3^(x^2-5x+2)=9^(x+1)