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Stella [2.4K]
2 years ago
5

What is the solution to the system of equations?

Mathematics
2 answers:
qwelly [4]2 years ago
8 0

Answer:

ans: D

Step-by-step explanation:

suppose

y = 3x +1 be equation••••••1

and

y = -2x - 4

-y= 2x + 4 be equation ••••••2

add equation 1 and 2 as

y = 3x + 1

<u>-y</u><u> </u><u>=</u><u> </u><u>2x</u><u> </u><u>+</u><u> </u><u>4</u><u> </u>

0 = 5x + 5

so ,

5x = - 5

x = - 1

put x In either equation 1 or 2 to get y= - 2

OR,

since given equation intersects each other ,

use substitution method ,

Ulleksa [173]2 years ago
6 0

Answer:

D

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

The lines intersect at (- 1, - 2 ) ← solution → D

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