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y=mx+b
Solving for "X"
Combining Like Terms
Equal Values Method
100

Use graph 1 to find the rule in y=mx+b form.

y= .5x-2

100

Solve for "X".

x + y = 30 

x = 30 - y

100

Combine like terms for the equation:

-5x-6+2x=9

x=-5

100

Use Equal Values Method to solve:

y=3x-4

y=-2x+6

x=2

200

Use graph 2 to find the rule in y=mx+b form.

3x

200

Solve for "X".

2x - 4 = 3x + 5

x = -9

200

Combine like terms for the equation:

3-15=6x-2x

x=-3

200

Use Equal Values Method to solve:

y=3x+5

y=x+19

x=7

300

Use graph 3 to find the rule in y=mx+b.

1.5x+1

300

Solve for "X".

7(x-2) = 3(x+4)

x = 6.5

300

Combine like terms for the equation:

4(x-5)=20

x=10

300

Use Equal Values Method to solve:

y=2x-3

y=-x+3

x=2

400

Use graph 4 to find the rule in y=mx+b form.

x-3

400

Solve for "X".

3(x - 8) - 5 = 9(x + 2) + 1

x = -8

400

Combine like terms for the equation:

7x-4x=21

x=7

400

Use Equal Values Method to solve:

y=-2x+22

y=3x-28

x=10

500

Use graph 5 to find the rule in y=mx+b form.

-x-1

500

Solve for "X".

2x + 14y = 7 

x = 3.5 - 7y 

or 

7 - 14y / 2

500

Combine like terms for the equation:

19=5x+7-3x

x=6

500

Use Equal Values Method to solve:

y=x+2

y=-2x+5

x=1