The answer is 144.0833333333
2(9x-1)+7(x+6)=-60
Reorder the terms in parentheses
+(+18x-2)+7*(x+6)=-60
Remove unnecessary parentheses
+18x-2+7*(+x+6)=-60
Reorder the terms in parentheses
+18x-2+(+7x+42)=-60
Remove unnecessary parentheses
+18x-2+7x+42=-60
We move all terms containing x to the left and all other terms to the right
+18x+7x=-60+2-42
We simplify left and right side of the equation
+25x=-100
We divide both sides of the equation by 25 to get x
x=-100/25
x=-4
0.0757142857142857
I wasnt sure if you wanted me to round to a percific place
The perimeter is 500 cm, meaning the width + width + length + length is 500 cm in this rectangle.
clearly, since their sum is 500 total, the length of any of the sides cannot be larger than 500, it has to be less to allow room for the other 3 sides. L < 500.
and the length cannot be 0 either, because if it's, then there's no rectangle :). L > 0
L < 500 and L > 0 0 < L < 500.
