3x - 4x - 8 = 5x - 4
-x - 5x = -4 + 8
-6x = 4
x = 4 : (-6)
x = -4/6
2. 13(x+1)-2x=5-4(x+1)
13x + 13 - 2x = 5 - 4x - 4
11x + 13 = 1 - 4x
11x + 4x = 1 - 13
15x = -12
x = -12 : 15
x = -12/15
3. -5(y+5)-4=y-(2y+4)
-5y - 25 -4 = y - 2y -4
-5y - y + 2y = -4 +4 -25
-4y = -25
y = -25 : (-4)
y = 25/4
Объяснение:
3x - 4x - 8 = 5x - 4
-x - 5x = -4 + 8
-6x = 4
x = 4 : (-6)
x = -4/6
2. 13(x+1)-2x=5-4(x+1)
13x + 13 - 2x = 5 - 4x - 4
11x + 13 = 1 - 4x
11x + 4x = 1 - 13
15x = -12
x = -12 : 15
x = -12/15
3. -5(y+5)-4=y-(2y+4)
-5y - 25 -4 = y - 2y -4
-5y - y + 2y = -4 +4 -25
-4y = -25
y = -25 : (-4)
y = 25/4
Объяснение: