2.(4 - 3.x) + 15 = 23
2.(4 - 3.x) = 23 - 15
2.(4 - 3.x) = 8
4 - 3.x = 8 : 2
4 - 3.x = 4
3.x = 4 - 4
3.x = 0
x = 0 : 3
x = 0
Vậy x = 0
2x(4-3xX)+15=23
2x(4-3xX)=23-15=8
(4-3xX)=8:2=4
3xX=4-4=0
X=0:3=0
Đáp án: X=0
2x ( 4 - 3 . x ) + 15 = 23
2x ( 4 - 3 . x ) = 23 - 15
2x ( 4 - 3 . x ) = 8
( 4 - 3 . x ) = 8 : 2
4 - 3 . x = 4
3 . x = 4 - 4
3 . x = 0
=> x = 0 : 3
=> x = 0
2.(4 - 3.x) + 15 = 23
2.(4 - 3.x) = 23 - 15
2.(4 - 3.x) = 8
4 - 3.x = 8 : 2
4 - 3.x = 4
3.x = 4 - 4
3.x = 0
x = 0 : 3
x = 0
Vậy x = 0