How do you solve x-2y=0 and 4x-3y=15 using substitution? Algebra Systems of Equations and Inequalities Systems Using Substitution 1 Answer CW Sep 6, 2016 x=6,y=3 Explanation: x-2y=0 => x=2y Substitute x=2y into 4x-3y=15, we get : 4(2y)-3y=15 8y-3y=15 5y=15 => y=3 x=2y = 2xx3=6 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=1/4x-14 and y=19/8x+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 2950 views around the world You can reuse this answer Creative Commons License