Question 957349
1/3 of the birds were cockatoos and 1/4 were pigeons. He saw 6 more cockatoos than pigeons. How many birds did David see?
let x=number of birds he saw
{{{(1/3)x=(1/4)x+6}}} Multiply each side by 12
{{{4x=3x+72}}} Subtract 3x from each side.
{{{x=72}}} ANSWER: David saw 72 birds.
CHECK:
{{{(1/3)x=(1/4)x+6}}}
{{{(1/3)72=(1/4)72+6}}}
{{{24=18+6}}}
{{{24=24}}}