4, 2, -x ^, -x it goes from the highest number then letter with any sign attached
42 because it is all of the sides have to be added up for the perimeter so the formula would be 14+14+7+7.
X+y=15
2x+3y=37
15-x=y
2x+3(15-x)=37
2x+(45-3x)=37
2x-3x+45=37
-1x=-8
x=8
x is the amount of bikes, so there are 8 bikes. 8x2=16.
37-16=21
21/3=7
There are 7 tricycles.
One hundred and three million, seven hundred and twenty-seven thousand, four hundred and ninety five.
