candice4174 candice4174

24-05-2021
Mathematics

contestada

-8(x+-7)=80
x=?

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Respuesta :

zarampa zarampa

15-08-2022

Answer:

x = -3

Step-by-step explanation:

-8(x + -7) = 80

Multiplication signs rule:

+ * - = -

- * - = +

Then:

-8(x - 7) = 80

-8*x -8*-7 = 80

-8x + 56 = 80

-8x = 80 - 56

-8x = 24

x = 24/-8

x = -3

Check:

-8(-3-7) = 80

-8(-10) = 80

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