Question
Solve each of these systems using the substitution method. Make sure to check your answers !
2x + 3y = -4
x - 2y = 5
Question 1 answers
x = 1, y = -2
x = -1, y = 2
x = 1, y = 2
x = -2, y = -1
2x + 3y = -4
x - 2y = 5
Question 1 answers
x = 1, y = -2
x = -1, y = 2
x = 1, y = 2
x = -2, y = -1
Answers
PsyDAG
x = 5 + 2y
2x + 3y = -4
Substitute 5 + 2y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.
2x + 3y = -4
Substitute 5 + 2y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.