Answer:
Step-by-step explanation:
-5x-y=5 since its substitution, take the equation that has the variables on
x=7y-1 opposite sides(x-7y-1) and sub in whats on the opposite side of the
-5(7y -1)-y=5 equal sign (7y-1) in for the x variable in the first equation
-35y+5-y=5. then you distribute the -5 to every value in the parenthesis
-36y=0 then you isolate the remaining variable on one side
y=0 then divide until the variable has no coefficiant
-5x-0=5 then you plug that value back in to the first equation
-5x=5 isolate the variable again
x=-1 then divide again. your y value is 0 and your x value is -1
