How do you solve the following system?: 7y=4- 2x , 3x + y = -1 Algebra Systems of Equations and Inequalities Systems Using Substitution 1 Answer VinÃcius Ferraz Nov 13, 2015 (-11/19, 14/19) in mathbb{Q times Q} Explanation: y = -1 - 3x 7(-1-3x) = 4 - 2x -7 - 4 = - 2x + 21x -frac{11}{19} = x y = -1 -3(-11/19) = frac{-19+33}{19} 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 1068 views around the world You can reuse this answer Creative Commons License