Question

Solve the following system using either linear combination or substitution. Round any answers to the hundredths place. Show all work
x-10y=6
y=-5x-23

Answer 1

So if y=-5x-23 then we can plug that value in for y in x-10y=6, so it becomes

x-10(-5x-23)=6

x+50x+230=6

51x=-224

x=-4.39

plug this x value into the equation y=-5x-23

y=-5(-4.39)-23

y=21.95-23

y=-1.05