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19-10-2020
Mathematics

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This Equation has only one solution 5(x-1) +3x = 7(x + 1) its an emergancy

Respuesta :

19-10-2020

Answer:

12

Step-by-step explanation:

5(x-1) +3x = 7(x + 1)

5 × x - 5×1 + 3x = 7 × x + 7 × 1

5x-5+3x=7x+7

8x-5=7x+7

8x-7x=7+5

x=12

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