Respuesta :
If we solve the equations -5x=y-5 and -2y=-x-21 then we will find that the value of x is -1 and y=10.
What is equation?
An equation is relationship between two or more variables expressed in equal to form.Equation of two variables look like ax+by=c.
How to solve equations?
The given equations are -5x=y-5 and -2y=-x-21 and we have to find the values of x and y.
-5x-y=-5-------------1
x-2y=-21-------------2
Multiply equation 2 by 5 and then add both equations
-5x-y+5x-10y=-5-105
5x will be cancelled out
-11y=-110
y=110/11
y=10
Put the value of y=10 in equation 1 to get the value of x.
-5x-y=-5
-5x-10=-5
-5x=-5+10
-5x=5
x=5/-5
x=-1
Hence the system of equations -5x=y-5, -2y=-x-21 has x=-1 and y=10.
Learn more about equations at https://brainly.com/question/2972832
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