1. 3x - 6+9y
2.21x-28

Step-by-step explanation:

x

=

2

−

3

y

3

x

+

9

y

=

6

Replace all occurrences of

x

in

3

x

+

9

y

=

6

with

2

−

3

y

.

x

=

2

−

3

y

3

(

2

−

3

y

)

+

9

y

=

6

Simplify

3

(

2

−

3

y

)

+

9

y

.

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x

=

2

−

3

y

6

=

6

Since

6

=

6

, the equation will always be true.

x

=

2

−

3

y

Always true

Remove any equations from the system that are always true.

x

=

2

−

3

y

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation:

honestly bro aint no one got time to answer these dumb question just do it p***y

step-by-step explanation: