# Math

posted by .

Solve by either graphing and then get an exact solution by using either substitution or elimination:

x-3y=6
2x+y=2

• Math -

both are straight lines. For x = 0 find y for both equations and mark those points on a graph
Then for x = something else, like 10, find y for both equations
draw lines through the points for each equation
Find where the lines cross.
x = (3y+6)
substitute that in the second one
2(3y+6) + y = 2

• Math -

plz help me

## Similar Questions

1. ### algebra 1

Got a test tomorrow... Say you have a system of equations (linear), that you can solve using substitution, graphing, or elimination. Without solving the equations, can you tell if there is one solution, many solutions, or no solution?
2. ### MAT 101

Solve for X and Y in the following problems using either substitution or elimination methods. 2X + 5Y = 19 , 3X + 3Y = 15 4X + Y = 22 , 2X + 3Y = 16 12X + Y = 174 , 8X - 2Y = 36
3. ### math

use either substitution or elimination to solve 9x+5y=-6 4x+3y=2
4. ### math

use either substitution or elimination to solve 8x+15y=13 2x-5y=-1
5. ### algebra

i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y - 1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations …
6. ### Algebra 2

Solve each question algebraically: either using the elimination or the substitution method. 3x-1/2y=5 1/3x+1/4y=3
7. ### Math

5. Find the solution to the system of equations by using either graphing or substitution. y = 6 – x and y = x – 2 (2, 4) (–4, 2) (4, 2) no solutions 6. y = 2x – 1 and y = x + 3 (1 point)(4, 7) (7, 4) (–7, –4) infinite solutions …
8. ### math

find the solution to the system of equations by using either graphing and substitution y = 6 - x and y = x - 2 (2,4) (-4,2) (4,2) no solutions I think this one is the third answer am I right?
9. ### Math

x=-y+3 5x-y=-2 Solve using Elimination I already solved the equation using Substitution, Graphing, and a table I just need a little more help on Elimination. I know that in Elimination they have to be in the same form so I put it in …
10. ### algebra 1

Solve the system by either substitution or elimination 3x-5y=21 2x+y=1 A (2,-3) B (2,3) C (-2,-1) D (-2,1)

More Similar Questions