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22-01-2021
Mathematics

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if 1+2x+1 = 10 , then -8x= ?

Respuesta :

jimrgrant1 jimrgrant1

22-01-2021

Answer:

- 8x = - 32

Step-by-step explanation:

Given

1 + 2x + 1 = 10, that is

2 + 2x = 10 ( subtract 2 from both sides )

2x = 8 ( divide both sides by 2 )

x = 4

Then

- 8x = - 8 × 4 = - 32

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