Question #77dfc Algebra Systems of Equations and Inequalities Systems Using Substitution 1 Answer hassan j. · Stefan V. Jan 9, 2018 x=5 y=40 Explanation: We know both equations are equal to y right, so we will set both equations equal to each other. y=y So 8x=5x+15 8x−5x=15 3x=15 x=153 x=5 And since y=8x you have y=8⋅5=40 There you have it. Answer link Related questions How do you solve systems of equations using the substitution method? How do you check your solutions to a systems of equations using the substitution method? When is the substitution method easier to use? How do you know if a solution is "no solution" or "infinite" when using the substitution method? How do you solve y=−6x−3 and y=3 using the substitution method? How do you solve 12y−3x=−1 and x−4y=1 using the substitution method? Which method do you use to solve the system of equations y=14x−14 and y=198x+7? What are the 2 numbers if the sum is 70 and they differ by 11? How do you solve x+y=5 and 3x+y=15 using the substitution method? What is the point of intersection of the lines x+2y=4 and −x−3y=−7? See all questions in Systems Using Substitution Impact of this question 1220 views around the world You can reuse this answer Creative Commons License