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kirill [66]
3 years ago
12

7.

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

A.  

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5x + 10y = 18
SOVA2 [1]
5x + 10y = 18

x = y -6, we substitute this into first equation.

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5y - 30 + 10y = 18

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4 0
3 years ago
Read 2 more answers
Engli
posledela

Answer:

x=2/3

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-3x+4=2

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