Solve the following system of equations by the substitution method. 10x+10y=1 x=y-3 What is the value of y? -3/2 -29/20 31/20

To solve the system of equations by the substitution method, we can substitute the expression for x from the second equation into the first equation.Given: Substitute the expression for x into the first equation: Simplify the equation: Therefore, the value of y is .