so 1 head per squirel and 1 head per bird 4 legs per squirel and 2 legs per bird s=number of squirels b=birds the equatinos should be 1b+1s=number of heads=16 and 2b+4s=number of legs=44 (note 2b=2 times b) so we aolve
b+s=16 and 2b+4s=44 simplify the second equaiton by divideinb by 2 2b+4s=44 divide 2 b+2s=22
b+s=16 and b+2s=22 we can actually add the two equations together with the first one made negative -b-s=-16 b+2s=22+ 0b+1s=6 s=6 subsitute b+s=16 b+6=16 subtract 6 from both sides b=10
