Question

Tìm x

A) (17.x-25):8+65=9²
B) 2017¹⁰⁰.(x-60)=2017¹⁰¹

C) 5.x+3.(10-x)+x=45

 

 

Answer 1

B) 2017¹⁰⁰.(x-60)=2017¹⁰¹

x-60=2017¹⁰¹ : 2017¹⁰⁰

x-60 = 2017

x= 2017 + 60

x= 2077

C) 5.x+3.(10-x)+x=45

 5x+30 - 3x + x = 45

3x = 45-30

3x = 15

x= 5

Answer 2

A) (17x-25):8+65=9²

(17x-25):8 = 81 - 65

(17x-25):8 = 16

17x-25= 16:8

17x = 2+27

17x = 29

x= 29/17