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 ▸

Find the zeroes of the quadratic polynomial x^2 + 8x + 15.


Solve the simultaneous equation- 2x+8y=10 and 3x+2y=5


Simplify (x + 3)(2x + 5) - (x - 1)


A class of pupils were asked about how they travelled to school on a particular day. 1/6 of the pupils were driven to school in a car. 2/5 of the pupils took the bus. The rest of the pupils walked to school. Calculate the fraction of pupils who walk