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26-12-2018
Mathematics

contestada

What number is the substitution of 4(3x+9) and 5x+8

Respuesta :

26-12-2018

Answer:

-4

Step-by-step explanation:

If the question is for which x the equations 4(3x+9) and 5x+8 produce the same answer, the answer is x=-4

4(3x+9) = 5x+8

12x + 36 - 5x - 8 =0

7x = -28

x = -4

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