What is the answer to

y=-3x-4 3x+y=2

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