Answers
>
Maths
>
GCSE
>
Article
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
Answered by
Samuel B.
•
Maths tutor
3729 Views
See similar Maths GCSE tutors
Related Maths GCSE answers
All answers ▸
How do I expand double brackets? E.g. (4x+7)(3x+5)
The line AB has equation 3x +5y = 7 . Find the gradient of AB.
Expand and simplify (3 + √ 2)(5 – √ 2)
Tom tosses a coin. Every toss lands on either heads or tails. The coin lands on heads two thirds of the first 24 games. The coin then lands on heads the next 6 games. For all 30 tosses, work out the ratio heads:tails. Give the answer in the simplest form.