Answered

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21х + 7у = 42
- 5х + 5y = 10
X and y

Sagot :

Answer:

X=5 y=7

Step-by-step explanation:

i am pretty sure im right. if im wrong im sorry

meredith48034

Answer:

Step-by-step explanation:

21x + 7y = 42

-5x + 5y = 10

105x + 35y = 210

  -35x - 35y = -70

70x = 140

x = 2

-10 + 5y = 10

5y = 20

y = 4

(2, 4)

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