To solve the system by substitution, we need to substitute the expression for x in one equation into the other equation.
Given:
x = 5y + 9
Substituting this expression for x into the equation x = 5 gives us:
5 = 5y + 9
Now we can solve this equation for y:
5y = 5 - 9
5y = -4
y = -4/5
Substitute this value of y back into the equation x = 5y + 9:
x = 5(-4/5) + 9
x = -4 + 9
x = 5
Therefore, the solution to the system is:
A. (x, y) = (5, -4/5)
Solve the following system by substitution.
x=5y+9
x=
5
2y
.
.
.
Question content area right
Part 1
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A.
There are a finite number of solutions. The solution set is enter your response here.
(Type an ordered pair. Simplify your answer. Use integers or fractions for any numbers in the expression.)
B.
There are infinitely many solutions. The solution set is x,enter your response here.
(Simplify your answer. Type an expression using x as the variable.)
C.
The solution set is ∅.
1 answer