F1 Day 3 Solving using Elimination
d. I. R. t. ( Do u Remember?)
Unit F Day 3
Objective: Solving Systems of Equations Using Elimnation
Graph the following system of equations. State the solution.
Solving using ELIMINATION...
You will either ADD or SUBTRACT the two LINEAR equations in
order to eliminate one variable (X OR Y). Then solve. Plug the
variable you solved for in and solve for the other.
y= -2x + 6
y = 4x
3x + 2y = 5
( ) 2x - 2y = 10
Solve... If x = 3
x=
1 x + 3x - 2(4-3)
3
Plug into one equation to find y
2x - 4y = 18
y=
Write your answer as an ordered pair.
y=
(
Oct 17­9:05 AM
,
)
Oct 17­9:12 AM
Solve using Elimination.
Solve using elimination.
4x + 8y = -24
-4x - 2y = -12
x - y = 11
- 2x - 9y = -25
2x + y = 19
- 4x - 9y = -23
y=
Now plug in and solve for X.
x=
Write your answer as an ordered pair.
Oct 20­7:18 AM
Oct 20­7:23 AM
Solve using Elimination.
Solve.
5x + y = 9
4x + 2y = 20
10x - 7y = -18
8x + 4y = 20
Oct 20­7:24 AM
2x2 + 3x -y = 70
- 3x +y =130
Oct 20­7:31 AM
F1 Day 3 Solving using Elimination
Find the values for x and y thats solves the given system of
equations.
x2 + 2x -y = 20
-2x2 -4x +2y = -40
Oct 20­7:34 AM