Question

3.[25-(x-10)]-75=0

Answer 1

3 . [ 25 - ( x - 10 ) ] - 75 = 0

3 . [ 25 - ( x - 10 ) ] = 75

25 - ( x - 10 ) = 75 : 3

25 - ( x - 10 ) = 25

x - 10 = 25 - 25

x - 10 = 0

x = 0 + 10

x = 10

Vậy x = 10

Answer 2

\(3\cdot\left[25-\left(x-10\right)\right]-75=0\)

\(3\cdot\left[25-\left(x-10\right)\right]=0+75\)

\(3\cdot\left[25-\left(x-10\right)\right]=75\)

\(25-\left(x-10\right)=75:3\)

\(25-\left(x-10\right)=25\)

\(x-10=25-25\)

\(x-10=0\)

\(x=0+10\)

\(x=10\)

Answer 3

3 . [25 - (x - 10)] - 75 = 0

=> 3 . [25 - (x - 10)] = 0 + 75

=> 3 . [25 - (x - 10)] = 75

=> 25 - (x - 10) = 75 : 3

=> 25 - (x - 10) = 25

=> x - 10 = 25 - 25

=> x - 10 = 0

=> x = 0 + 10

=> x = 10

Vậy x = 10