The system of the equation will have the solution (-3,-6).
What is an equation?
The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
Given equations are:-
-4x + y = 6
-5x - y = 21
When we add the two equations we will get the value of x and y coordinates.
(-4x - 5x) + y - y = 27
-9x + 0 = 27
-9x = 27
x = -3
Put the value of the x in any of the above equations.
-4x + y = 6
( -4 x -3 ) + y = 6
y = 6 - 12
y = -6
Therefore the system of the equation will have the solution (-3,-6).
To know more about equations follow
https://brainly.com/question/2972832
#SPJ1
