Answers>Maths>GCSE>Article

Solve the simultaneous equations 2x + y = 18 and x - y = 6

2x + y = 6x - y = 6x = 6 + y => 2(6 + y) + y = 18 => 12 + 3y = 18 => 3y = 6 => y = 2x - (2) = 6 => x = 8x = 8, y = 2

HH

Answered by Harry H. • Maths tutor

3800 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Factorise fully 20x^2 - 5

How do you complete the square to answer quadratic equations?

Solve the simultaneous equations: 2x + y = 12; x - y = 6

Solve the following simultaneous equations. x^2+y^2=25. y-3x=13