08-06-2021
Mathematics

contestada

7x+40
5x+20
Find the value of x.

Respuesta :

akbusiness987 akbusiness987

08-06-2021

Answer:

x = - 10

Step-by-step explanation:

7x + 40 = 5x + 20

7x + 40 - 40 = 5x + 20 - 40

7x = 5x - 20

7x - 5x = 5x - 5x - 20

2x = - 20

2x ÷ 2 = - 20 ÷ 2

x = - 10

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