Find the solution of this system of equations

-5x + y= -7
-6x - y = 7

show work !

The two equations can be added to eliminate y.

... (-5x +y) + (-6x -y) = (-7) + (7)

... -11x = 0

This tells you x=0. Substituting this value into either of the other equations tells you y = 7. For example, using the first equation, you get

... 0 + y = 7

The solution is (x, y) = (0, 7).

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.