Пошаговое объяснение:
4x+16=28-2x
4x + 2x = 28 - 16
6x = 12
x = 12:6
x = 2
-3(x-1)=24-10x
-3x + 3 = 24 - 10x
10x - 3x = 24 - 3
7x = 21
x = 21:7
x = 3
2(4x+5)-3(x+6)=9x+8
8x + 10 - 3x - 18 = 9x + 8
5x - 8 = 9x + 8
9x - 5x = -8 - 8
4x = -16
x = -16:4
x = -4
5/6 x+8=1/4 x-6
5/6 x - 1/4 x = -6 - 8
10/12 x - 3/12 x = -14
7/12 x = -14
x = -14 * 12/7
x = -24
1,5(2x+5)+x=3(0,5x-7)+3,5
3x + 7,5 + x = 1,5x - 21 + 3,5
4x + 7,5 = 1,5x - 17,5
4x - 1,5x = -17,5 - 7,5
2,5x = -25
x = -25 : 2,5
x = -10
1)4x+16=28-2x
2x+4x=28-16
ответ:2.
2)-3(x-1)=24-10x
-3x+3=24-10x
-3x+10x=24-3
7x=21
ответ:3.
3)2(4x+5)-3(x+6)=9x+8
8x+10-3x-18=9x+8
8x-3x-9x=-10+18+8
-4x=16
x = 16:(-4)
ответ:-4.
4)5/6 x+8=1/4 x-6
5/6 x-1/4 x=-6-8
20/24 x- 6/24 x=-6-8
14/24 x=-14
14/24 24x=-14*24
14x = 336
x=336:14
x=24
ответ:24
5)1,5(2x+5)+x=3(0,5x-7)+3,5
3x+7,5+x=1,5x-21+3,5
7,5+21-3,5=-3x-x+1,5x
25=-2,5x
25*10 = 25x
250 = 25x
250:25=x
10=x
x=10
ответ:10.
Пошаговое объяснение:
4x+16=28-2x
4x + 2x = 28 - 16
6x = 12
x = 12:6
x = 2
-3(x-1)=24-10x
-3x + 3 = 24 - 10x
10x - 3x = 24 - 3
7x = 21
x = 21:7
x = 3
2(4x+5)-3(x+6)=9x+8
8x + 10 - 3x - 18 = 9x + 8
5x - 8 = 9x + 8
9x - 5x = -8 - 8
4x = -16
x = -16:4
x = -4
5/6 x+8=1/4 x-6
5/6 x - 1/4 x = -6 - 8
10/12 x - 3/12 x = -14
7/12 x = -14
x = -14 * 12/7
x = -24
1,5(2x+5)+x=3(0,5x-7)+3,5
3x + 7,5 + x = 1,5x - 21 + 3,5
4x + 7,5 = 1,5x - 17,5
4x - 1,5x = -17,5 - 7,5
2,5x = -25
x = -25 : 2,5
x = -10
Пошаговое объяснение:
1)4x+16=28-2x
2x+4x=28-16
6x = 12
x = 12:6
x = 2
ответ:2.
2)-3(x-1)=24-10x
-3x+3=24-10x
-3x+10x=24-3
7x=21
x = 21:7
x = 3
ответ:3.
3)2(4x+5)-3(x+6)=9x+8
8x+10-3x-18=9x+8
8x-3x-9x=-10+18+8
-4x=16
x = 16:(-4)
x = -4
ответ:-4.
4)5/6 x+8=1/4 x-6
5/6 x-1/4 x=-6-8
20/24 x- 6/24 x=-6-8
14/24 x=-14
14/24 24x=-14*24
14x = 336
x=336:14
x=24
ответ:24
5)1,5(2x+5)+x=3(0,5x-7)+3,5
3x+7,5+x=1,5x-21+3,5
7,5+21-3,5=-3x-x+1,5x
25=-2,5x
25*10 = 25x
250 = 25x
250:25=x
10=x
x=10
ответ:10.