Multiply each equation by a constant that would to eliminate the y terms.

2 x minus 5 y = negative 21. 3 x minus 3 y = negative 18.

what are the resulting equations?
6 x minus 15 y = negative 63. negative 15 x + 15 y = 90.
6 x minus 15 y = 63. negative 15 x + 15 y = 90.
6 x minus 15 y = negative 63. negative 15 x + 15 y = negative 90.
6 x minus 15 y = negative 63. negative 15 x + 15 y = 90.

c. 4 1/4 pounds

the cost of the pair of pants is $31.95

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .