Question 55388
{{{ F + B = 480 }}}
Solve for F
{{{ F = 480 - B }}}


{{{ 30F + 24B = 13200 }}}
Substitute the value of F into the equation
{{{ 30(480-B) + 24B = 13200 }}}
Distribute
{{{ 14400 - 30B + 24B = 13200 }}}
Combine like terms
{{{ 14400 -6B = 13200 }}}
Subtract
{{{ -6B = -1200 }}}
Divide
{{{ B = 200 }}}


{{{ F + B = 480 }}}
{{{ F + 200 = 480 }}}
{{{ F = 280 }}}


F = 280
B = 200