7x + 2x = 918
(7+2)x=918
9x=918
x = 102
3.(x-2)+150=240
3.(x-2) = 240 - 150 = 90
x - 2 = 90 : 3 = 30
x= 30 + 2
x=32
7x + 2x = 918
(7+2)x=918
9x=918
x = 102
3.(x-2)+150=240
3.(x-2) = 240 - 150 = 90
x - 2 = 90 : 3 = 30
x= 30 + 2
x=32
7x + 2x = 918
(7+2)x=918
9x=918
x = 102
3.(x-2)+150=240
3.(x-2) = 240 - 150 = 90
x - 2 = 90 : 3 = 30
x= 30 + 2
x=32
7x + 2x = 918
(7+2)x=918
9x=918
x = 102
3.(x-2)+150=240
3.(x-2) = 240 - 150 = 90
x - 2 = 90 : 3 = 30
x= 30 + 2
x=32
Bài 1: Tìm x
a) 7x + 2x = 918
b) 16 . x - 9 . x = 145 - 225 : 51
c) 3. ( x - 2 ) + 150 = 240
d) 580 : ( x - 24 ) = 329 - 150 . 2
e) 7. ( x - 14 ) + 35 = 25 + 279 : 9
g) [ ( 6 . x -72) : 2 - 8] . 28 = 5628
\(\frac{3x+1}{7x^2y}+\frac{2x+2}{7x^2y}\)
3.x.(x-2)+150=240
(x+5)-2.(x-7)+5.(8+x)-7.(3-2x)=(42-x)-5.(7x-7)+(4x-1)+34602
Bài 1: a) ( 4,45 - 2,2 ) x 8 : 0,3 / ( 0, 823 + 0,177 ) x 240
b) 247/ 12,49 x 1/2 + 247/ 12,47 x 1/6 + 247 / 12,49 x 1/3
Bài 2:
1) X - 32 : 16 = 48
2:( X - 32 ) : 16 = 48
3: 150 - 2 x ( X - 10) = 120
(x+5)-2.(x-7)+5.(8+x)-7.(3-2x)=(42-x)-5.(7x-7)+(4x-1)+34602
Ai giải giúp với, mình tick cho :)
240-2*[240-2*(2*x-120)]=40
Tim x
Tìm x
240-2*[240-2*(2*x-120)]=40
cú t ccau oiii ét ô ét giải giúp t bài này zới
4,7 : 0,25 + 5,3 x 4
3x ( a - 2) +150 = 240
1/9 + a + 7/12 = 17/18
( 1/2 x 1/3 + 1/3 x 1/4 + 1/4 x 1/5 + 1/5 x 1/6 + 1/6 x 1/7 + 1/7 x 1/8 ) x a = 9/16