WeatherfordR914 WeatherfordR914
  • 22-01-2020
  • Mathematics
contestada

what is the answer to
y=-3x-4 3x+y=2

Respuesta :

sophiadibella17
sophiadibella17 sophiadibella17
  • 22-01-2020

Let's solve your system by substitution.

y

=

−

3

x

−

4

;

3

x

+

y

=

2

Step: Solve

y

=

−

3

x

−

4

for y:

y

=

−

3

x

−

4

Step: Substitute

−

3

x

−

4

for

y

in

3

x

+

y

=

2

:

3

x

+

y

=

2

3

x

+

−

3

x

−

4

=

2

−

4

=

2

(Simplify both sides of the equation)

−

4

+

4

=

2

+

4

(Add 4 to both sides)

0

=

6

Answer Link

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