In: Advanced Math
For the following exercises, determine whether the given ordered pair is a solution to the system of equations.
x + 8y = 43
3x − 2y = −1 and (3, 5)
Consider the system of linear equations in two variables as
a1x + b1y = c1
a2x + b2y = c2
The solution of such system of linear equations in two variables is any ordered pair that satisfies each equation independently.
Consider system of equations as:
x + 8y = 43 …… (1)
3x – 2y = -1 …… (2)
Verify if ordered pair (3, 5) is solution of (1) and (2).
Substitute x = 3 and y = 5 in (1) and proceed as following:
(3) + 8(5) = 43
3 + 40 = 43
43 = 43
Thus, (3, 5) satisfies (1).
Now, substitute x = 3 and y = 5 in (2) as shown below:
3(3) – 2(5) = -1
9 – 10 = -1
-1 = -1
Thus, (3, 5) satisfies (2).
Therefore, given ordered pair (3, 5) is a solution of given system of linear equations.
Therefore, given ordered pair (3, 5) is a solution of given system of linear equations.