There are 26 third graders and 32 fourth graders going on a field trip. each van can carry 10 people

No question was asked buy i'll try to answer anyway.

either im assuming its asking how many vans or how many missing seats.

26+32 58 students total,

You would need 6 vans to carry them, and 2 seats would be missing.

If this isnt what you were looking for please comment a question and i'll try to help

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.