6x + 2y = 22, 2x + y = 8. Find x and y.
Times second equation by 2.6x + 2y = 22 4x + 2y = 16Cancel the y's to gain equation of just x's. 6x + 2y =22 4x + 2y = 16 - ------------------- 2x = 6 ; x = 3Substitute x into an equation.(2×3) + y = 8y = 8-6y=2
JO
Related Maths GCSE answers
All answers ▸Calculate (7 + √3)(7 - √3)
A bag contains red discs, white discs and blue discs. 1/6 of the discs are red, 1/4 of the discs are blue. What is the smallest possible number of white discs?
Solve the following equation: x^2 - 11x + 18 = 0
I feel really nervous about time pressure in the exam, I don't think I'll finish