Решите уравнения -4(-x+7)=x+17 c-32=-7(c+8) 3(4x-8)=3x-6 5(x-7)=3(x-4) 4(x-3)-16=5(x-5) 8(2a-6)=2(4a+3) -4(3-5x)=18x-7
Решите уравнения
-4(-x+7)=x+17
c-32=-7(c+8)
3(4x-8)=3x-6
5(x-7)=3(x-4)
4(x-3)-16=5(x-5)
8(2a-6)=2(4a+3)
-4(3-5x)=18x-7
6a+(3a-2)=14
8x-(7x-142)=51
Ответ(ы) на вопрос:
Гость
- 4*( - x + 7 ) = x + 17
4x - 28 = x + 17
3x = 45
x = 15
------------------------------
c - 32 = - 7 * ( c + 8 )
c - 32 = - 7c - 56
8c = - 24
c = - 3
------------------------------------
3 * ( 4x - 8 ) = 3x - 6
12x - 24 = 3x - 6
9x = 18
x = 2
-----------------------------------------------
5 * ( x - 7 ) = 3 * ( x - 4 )
5x - 35 = 3x - 12
2x = 23
x = 11,5
----------------------------------------------------
4 * ( x - 3 ) - 16 = 5 * ( x - 5 )
4x - 12 - 16 = 5x - 25
4x - 28 = 5x - 25
x = - 3
------------------------------------------------------
8 * ( 2a - 6 ) = 2 * ( 4a + 3 )
16a - 48 = 8a + 6
8a = 54
a = 6,75
-----------------------------------------------------
- 4 * ( 3 - 5x ) = 18x - 7
- 12 + 20x = 18x - 7
2x = 5
x = 2,5
--------------------------------------------------------
6a + ( 3a - 2 ) = 14
6a + 3a - 2 = 14
9a = 16
a = 1 ( 7/9 )
-------------------------------------------------------
8x - ( 7x - 142 ) = 51
8x - 7x + 142 = 51
x = - 91
Не нашли ответ?
Похожие вопросы