6 2 solving systems using substitution
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6-2 Solving Systems Using Substitution . Objective: Ditto “ “. 6-2 Solving Systems Using Substitution . You can solve linear systems by solving one of the equations for one of the variables. Then substitute the expression for the variable in the other equation.

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6-2 Solving Systems Using Substitution

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6 2 solving systems using substitution

6-2 Solving Systems Using Substitution

Objective: Ditto “ “


6 2 solving systems using substitution1

6-2 Solving Systems Using Substitution

  • You can solve linear systems by solving one of the equations for one of the variables.

  • Then substitute the expression for the variable in the other equation.


The weather out side is frightful

6-2 Solving Systems Using Substitution

The weather out side is frightful


6 2 solving systems using substitution2

6-2 Solving Systems Using Substitution

  • Example 1: Use substitution to solve

  • y = 3x

  • x + y = -32

Choose wisely . . .


But my dear we re still goodbying

6-2 Solving Systems Using Substitution

But My Dear we’re still goodbying


6 2 solving systems using substitution3

Choose wisely . . .

6-2 Solving Systems Using Substitution

  • Example 2: Use substitution to solve

  • 3y + 4x = 14

  • -2x + y = -3


As long as you love me so

6-2 Solving Systems Using Substitution

As long as you love me so


6 2 solving systems using substitution4

Choose wisely . . .

6-2 Solving Systems Using Substitution

  • Example 3: P. 374

  • A snack bar sells two sizes of snack packs. Large is $5 & small is $3. One day the snack bar sold 60 packs for $220. How many small packs did it sell?


6 2 solving systems using substitution5

6-2 Solving Systems Using Substitution

  • Example 3: A snack bar sells two sizes of snack packs. Large is $5 & small is $3. One day the snack bar sold 60 packs for $220. How many small packs did it sell?

  • Write 2 equations and solve with sub.


Let it snow let it snow let it snow

6-2 Solving Systems Using Substitution

Let it snow let it snow let it snow


6 2 solving systems using substitution6

6-2 Solving Systems Using Substitution

  • Example 4: Solve with sub.

  • x = -2y + 4

  • 3.5x + 7y = 14


6 2 solving systems using substitution7

6-2 Solving Systems Using Substitution

  • Example 4: Solve with sub.

  • y = 3x – 11

  • Y – 3x = -13


Let it snow let it snow let it snow1

HW: p. 375 12 – 36 every third

6-2 Solving Systems Using Substitution

Let it snow let it snow let it snow


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