Question

a.(7x + 6 ).5^5=5^8

b.3x-35=40

Answer 1

a) ( 7x + 6 ).5^5=5^8

7x + 6 = 5^8:5^5

7x + 6 = 5^3

7x + 6 = 125

7x = 125 - 6

7x = 119

x = 119:7

x = 17

b) 3x - 35 = 40

3x = 40+35

3x = 75

x =75 : 3

x = 25

Answer 2

a. (7x+6).5⁵=5⁸

(7x+6)=5⁸:5⁵

(7x+6)=5³ =125

7x=125-6=119

x=199:7=17

b. 3x-35=40

3x=40+35

3x=75

x=75:3

x=25

*nhớ ủng hộ mình nha*

Answer 3

help me

Answer 4

phần b

3x-35=40la: 3x tức là 3nhan x -35 =40

vậy ta có: 40 + 35 = 75 suy ra 3nhan 25 = 75: 75 -35 = 40

3x-35=40

x=40+35

x=75