There are 5 big jars of sugar and 2 small jars of sugar in a kitchen. There is
a total of 8.35 kg of sugar in the jars. 2 big jars contain 0.3 kg more sugar
than 3 small jars. How much sugar is there in all the big jars?
2 big jars contain 0.3 kg more sugar
than 3 small jars
2b = 3s + .3
re-arrange to s = (2b-.3)/3
5b + 2s = 8.35 total now substitute in the red equation for 's'
5b + 2(2b-.3)/3 = 8.35
b = 1.35 kg per jar now multiply by 5 (since there are 5 big jars).......