How do you solve 2x + y = 6 and y = 3x + 4 using substitution? Algebra Systems of Equations and Inequalities Systems Using Substitution 1 Answer ali ergin Mar 11, 2016 x=2/5 Explanation: 2x+y=6" "color(green)(y=3x+4) 2x+color(green)(3x+4)=6 5x=6-4" "5x=2 x=2/5 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 3361 views around the world You can reuse this answer Creative Commons License