Question

(3x-2⁴) . 7³=2.7⁴

5(x-3)+17=142

[(6x-72):2-84] . 28=5628

 

Answer 1

b: =>5x+2=142

hay x=28

Answer 2

(3x-2⁴) . 7³=2.7⁴

<=> 3x-2⁴=14

<=> x= 10

Answer 3

[(6x-72):2-84] . 28=5628

<=> (6x-72):2-84 = 201

<=> 6x-72 = 570

<=> x= 107

Answer 4

b: =>5x+2=142

hay x=28