2 years ago

Help its for a test grade X-5y=8 4х+5y=7

Mathematics

1 answer:

erastova [34]2 years ago

5 0

Answer:

x = 3 y = -1

Step-by-step explanation:

x - 5y = 8

x = 5y + 8

replace x with 5y + 8 in the other equation

4(5y + 8) + 5y = 7

20y + 32 + 5y = 7

25y = 7 - 32

25y = -25

y = -25/25

y = -1

x = 5(-1) + 8

x = -5 + 8

x = 3

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