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Georgia [21]
3 years ago
9

Solve the linear equation by using substitution X-y=-4 3x-y=-10

Mathematics
1 answer:
svetoff [14.1K]3 years ago
7 0

Answer:

(-3, 1)

Step-by-step explanation:

x-y=-4

3x-y=-10

------------

y=x-(-4)=x+4

3x-(x+4)=-10

3x-x-4=-10

2x-4=-10

2x=-10+4

2x=-6

x=-6/2

x=-3

-3-y=-4

y=-3-(-4)=-3+4=1

x=-3, y=1. (-3, 1).

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