Question

Penyelesaian dari a) x -5 = 2x + 1
b) 3(x + 6) = 2(x + 7)
nilai x yang memenuhi a) 7x + 2= 2x-8
b) 4x - 6 > 3x + 3
beserta jalannya

Answer 1

A) x - 5 = 2x + 1
   x - 2x = 5 + 1
   - x = 6
     x = -6

b) 3x + 18 = 2x + 14
   3x - 2x = 14 - 18
   x = -4

a) 7x + 2 = 2x - 8
   7x - 2x = -8-2
   5x = -10
   x = -2

b) 4x - 6 > 3x + 3
   4x - 3x > 3 + 6
   x > 9
   x = {10,11,...}