y+x=7
3x+y=15
y = 7 - x
3x + 7 - x = 15
2x = 8
x = 4
Take it from there.
use substitutio method
y+x=7
3x+y=15
3 answers
a bucket is 44cm in diameter at the top and 24cm at diameter at the bottom.Find its capacity in litres if its 36cm deep
y+4=7
y=3
(3×4)+y=15
12+y=15
y=3
answer=....x=4 and y=3
y=3
(3×4)+y=15
12+y=15
y=3
answer=....x=4 and y=3