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Pavel [41]
3 years ago
9

Solve the following system of equations by substitution. PLEASE HELP!

Mathematics
1 answer:
BartSMP [9]3 years ago
6 0

Answer:

(1,-1)

Step-by-step explanation:

y = -1

5x+7y = -2

Substitute the first equation into the second

5x + 7(-1) =-2

5x -7 = -2

Add 7 to each side

5x-7+7 = -2+7

5x= 5

Divide by 5

5x/5 = 5/5

x =1

(1,-1)

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