Question

Selesaikanlah persamaan linear satu variabel berikut.
a.5x + 3 = 2x + 15
b. 2x - 3 = 9 + 6x
c.- 3/2x = - 6

Answer 1

A) 5x + 3 = 2x + 15
3x = 12
x = 4

b) 2x - 3 = 9 + 6x
- 4x = 12
x = - 3

c) -3/2x = - 6
- 3 = - 12x
x = 1/4

Answer 2

A.5x+3=2x+15
5x-2x=15-3(krn pindah ruas jadi tandanya berubah)

3x=12
x=12/3=4
b.2x-3=9+6x
2x-6x=9+3
-4x=12
x=12/-4=-3
c. -3/2x= -6
-3=-6.2x
-3=-12x
-3/-12=x
0,25=x