Question

5x+5х=100
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Answer 1

$5x + 5x = 100 \\ 10x = 100 \\ x = 100 \div 10 \\ x = 10$

Answer 2

5х+5х=100

10х=100

Х = 100 / 10

Х = 10

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Готово!!! Удачи!))