please help me

Question

For the equation 2x+3y=18, find the missing values of the following ordered pairs

 

(3,?)

 

(-6,?)

 

(0,?)

 

(?,0)

 

(?.-4)

 

(?,2)

Answer 1

An ordered pair is simply a list of values that satisfies the linear equation. Usually the x value is first and the y value is second, i.e. (x,y) is a solution. Just solve the for the unknown value based on each "coordinate" given.

 

For example:

(3,?) means x=3 and y=?

2*x+3*y=18

2*3+3*y=18

6+3*y=18

3*y=18-6

3*y=12

y=12/3

y=4

so the answer is (3,4)