Question

Tentukan penyelesaian dari persamaan persamaan berikut ini !

1.) 2x + 3 = 9
2.) 2m - 6 = 9m + 8
3.) 2t - 1/2 = 2/3

Answer 1

1. 2x + 3 = 9
2x = 9 - 3
2x = 6
x = 6 : 2
x = 3
jadi 2.3 + 3 = 9 - > 6 + 3 = 9

2) 2m - 6 = 9m + 8
-6-8 = 9m-2m
-14 = 7m
-14 : 7 = m
m = -2

3. 2t - 1/2 = 2/3
2t = 2/3 + 1/2
2t = 7/6
t = 7/6/2
t = 14/6 -> 7/3