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18-11-2021
Mathematics

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Solve the system by substitution y=5x y=-x+30

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Аноним Аноним

18-11-2021

Answer:

Step-by-step explanation:

y = 5x

y = x + 30

Substitute y = 5x in second equation:

5x = x+ 30

4x = 30

x = 7.5.

and y = 5*7.5 = 37.5.

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