# intermediate algebra

posted by .

Solve uing the subtitution method. Show your work. If the system has no solution or an infinite number of solutions, stat this,3x-15y=-12
3x+24y=-12

• intermediate algebra -

3x-15y=-12 ...(1)
3x+24y=-12 ...(2)
Subtract (1) from (2) to get
39y=0, or y=0.
Substitute into (1) and get
3x+0=-12,
or x=-4

## Similar Questions

1. ### Intermediate Algebra (Math)

HELP PLEASE, Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -2x Ð 8y = 22 -6x Ð y = 20 At first I tried to multiply by 8 but that did not work.
2. ### Intermediate Algebra

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -7x Ð 5y = 1.5 -5x Ð 4y = 4.5
3. ### Algebra (Intermediate)

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 9x + 6y = 60 -27x Ð 18y = -180
4. ### Intermediate Algebra

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x + y = 4 x + 3y = 22 Here's what I came up with (where did I go wrong) -3x + y = 4 y = 4 - 3x -3x …
5. ### Algebra

using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x + 24y = 24 27x – 15y = -15
6. ### math

use the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this 3x + 24y = 24s,27x – 15y = -15 .
7. ### intermediate algebra

Solve using the elimination method. Show all work. If the system has no solution or an infinite number of solutions, state this. 3x+7y=77 -2x+7y=42
8. ### intermediate algebra

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions,state this. 3x+7y=77 -2x+7y=42
9. ### algebra

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x – 15y = -12 3x + 24y = -12
10. ### Intermediate Algebra

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 14x + 18y = -54,-4x – 14y = 42

More Similar Questions