Question

What is the solution to the system of equations?

y= -5x + 30
x= 10
(-20, 10)
(10,-20)
(10, 4)
(4, 10)

Answer 1

(10, -20).

Explanation:

y= -5x + 30

x = 10

Substitute x = 10 in the first equation:

y = -5*10 + 30

y = -50 + 30

y = -20.

So the solution is (10, -20).

Answer 2

Answer: (10,-20)

Explanation:

The given system of equations :-

`y= -5x + 30------------(1)\\\\x= 10----------------(2)`

To solve the above system , we substitute the value of x= 10 in equation (1), we get

`y= -5(10) + 30`

Simplify ,

`y= -50+ 30\\\\\Rightarrow\ =-20` (3)

Therefore from (2) and (3) , we get

The solution to the given system of equations : (x,y) = (10,-20)