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Mars2501 [29]
3 years ago
5

Y = – x – 6 y = x – 4 solve the system of equations using substition. HELP NEEDED IMMEDITLY!!!!!!!!

Mathematics
2 answers:
Debora [2.8K]3 years ago
7 0

Answer:

x=-1 y= -5

Step-by-step explanation:

y = – x – 6

y = x – 4

Substitute into y  = -x-6 into the second equation

y =x-4

-x-6 = x-4

Add x to each side

-x-6+x =x-4+x

-6 =2x-4

Add 4 to each side

-6+4 =2x-4+4

-2 = 2x

Divide by 2

-2/2 =2x/2

-1 = x

Now find y

y =-x-6

y = -(-1) -6

y =1-6

y = -5

Art [367]3 years ago
3 0

Answer:

x = -1

y = -5

Step-by-step explanation:

Given:

  • y = – x – 6
  • y = x – 4

We'd take one of the equations above and substitute it with the y variable:

x - 4 = -x - 6

-x is smaller, so we add x in both sides:

2x - 4 = -6

Add 4 in both sides:

2x = -2

Divide 2 in both sides:

x = -1

Solve for y

y -(-1) - 6 = -5

y = -5

Our answer is x = -1, y = -5

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