Question

Hitunglah nilai x pada persamaan berikut!

a.) 3x + 2 = x - 1

b.) 4x - 3 = 2x + 7

c.) 2 (3x -1) = 3 (x + 2)

d.) 3 (2x -2) = 2 (2x -5)​

Answer 1

Jawaban:

a) 3x + 2 = x - 1

: 3x - x = -1 - 2

: 2x = -3

: x = -3/2

b) 4x - 3 = 2x + 7

: 4x - 2x = 7 + 3

: 2x = 10

: x = 10/2

: x = 5

c) 2 ( 3x - 1 ) = 3 ( x + 2 )

: 6x - 2 = 3x + 6

: 6x - 3x = 6 + 2

: 3x = 8

: x = 8/3

d) 3 ( 2x - 2 ) = 2 ( 2x - 5 )

: 6x - 6 = 4x - 10

: 6x - 4x = -10 + 6

: 2x = -4

: x = -4/2

: x = -2

SEMOGA MEMBANTU