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Thepotemich [5.8K]
3 years ago
5

Y=x-7 Y=-4x-2 Solve by substitution help please

Mathematics
2 answers:
wlad13 [49]3 years ago
6 0

Answer:

(1, - 6 )

Step-by-step explanation:

Given the 2 equations

y = x - 7 → (1)

y = - 4x - 2 → (2)

Substitute y = x - 7 into (2)

x - 7 = - 4x - 2 ( add 4x to both sides )

5x - 7 = - 2 ( add 7 to both sides )

5x = 5 ( divide both sides by 5 )

x = 1

Substitute x = 1 into either of the 2 equations for corresponding value of y

Substituting x = 1 into (1)

y = 1 - 7 = - 6

Solution is (1, - 6 )

sergeinik [125]3 years ago
4 0

Answer:

6= 7-1

-14= -4·3-2

Step-by-step explanation:

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