Solve the simultaneous equations 3x + y = 23 and 4x + 4y = 52
3x + y =23, 4x +4y=5212x+4y=92, 12x+12y=1568y=64y=8sub in3x+8=23, 3x=15x=5y=8x=5
SB
Related Maths GCSE answers
All answers ▸The equation of the line L1 is y=3x–2. The equation of the line L2 is 3y–9x+5=0. Show that these two lines are parallel.
Solve the simultaneous equations: 3x +4y = 18, and 5x - 2y = 4
What is the size of the interior angle of a regular 12-sided polygon?
Work out 5/6 + 3/7. Give your answer as a mixed number.