Question

Решите уравнение: a)2x-1=o б)x+9=4x+3 в)3/4(4x+8)=9-(7x-1)

Answer 1

a)2x-1=0
 2х = 1
х = 1/2
б)x+9=4x+3
   х - 4х = 3 - 9
   - 3х = - 6
     х = (-6) : (-3)
     х =2
в)3/4(4x+8)=9-(7x-1)
   3х + 6 = 9 - 7х + 1
   3х + 7х = 9 + 1 - 6
   10 х = 4
   х = 4 : 10
 х = 0, 4

Answer 2

a) 2x - 1 = 0 2x = 1 x = 1/2

b) x + 9 = 4x + 3 Subtracting x from both sides: 9 = 3x + 3 Subtracting 3 from both sides: 6 = 3x x = 2

c) 3/4(4x+8) = 9 - (7x - 1) 3x + 6 = 9 - 7x + 1 3x + 7x = 9 - 1 - 6 10x = 2 x = 1/5

Therefore, the solutions are: a) x = 1/2 b) x = 2 c) x = 1/5