Question 318481
1.{{{1B+2C=3060}}}
2.{{{2B+1C=2760}}}
Multiply eq. 2 by (-2) and add to eq. 1,
{{{B+2C-4B-2C=3060-5520}}}
{{{-3B=-2460}}}
{{{highlight(B=820)}}}
Then use either equation to solve for C.
{{{1640+C=2760}}}
{{{highlight(C=1120)}}}
.
.
.
A burrito has 820 calories and a chesseburger has 1120 calories.