Solve the following system of equations by the substitution method.

8x = 2y + 5

3x = y + 7

What is the solution set?

{(-41/2, -9/2)}
{(-9/2, -41/2)}
Ø

Question

Solve the following system of equations by the substitution method.



8x = 2y + 5

3x = y + 7

What is the solution set?

{(-41/2, -9/2)}
{(-9/2, -41/2)}
Ø

mathstudent55 · Answer

Use the second equation to solve for y.
Then substitute what you get for y into y of the first euqation.

anonymous · Answer

Solve the following system of equations.

3x + 2y - 5 = 0

x = y + 10

mathstudent55 · Answer

Since the scond equation is already solved for x, plug in y + 10 in for x of the first euqation.

anonymous · Answer

Choose one point in the solution of the system and prove it mathematically.

2x - 3y ≤ 6

y <-1/2 x