tentukan himpunan penyelesaian dari 1.)12+3x=5+2x 2.)3(x+2)=2(x+5) 3.)5(x-1)=4x 4.)3(3-2x)=15-7x 5.)8-(2-4x)=7x-1 6.)5x+7(3x+2)=6(4x+1) 7.)2x+1=x-3 8.)-2x+5=(x+

1. 12 +3x = 5 + 2x
3x -2x = 5 -12
x = -7

2. 3 (x+2) = 2 (x+5)
3x +6 = 2x +10
3x -2x = 10-6
x = 4

3. 5 (x-1) = 4x
5x -5 = 4x
5x -4x = 5
x = 5

4. 3 (3 -2x ) = 15 - 7x
9 - 6x = 15 -7x
-6x +7x = 15 -9
x = 6

5. 8 - ( 2-4x) = 7x-1
8 -2 + 4x = 7x -1
6 + 4x = 7x -1
4x -7x = -1 -6
-3x = -7
x = -7/-3 = 2 1/3

6. 5x +7 (3x +2) = 6 (4x +1)
5x +21x + 14 = 24x +6
26x -24x = 6 -14
2x = -8
x. = -8/2 = -4

7.2x +1 = x -3
2x -x = -3 -1
x = -4

8. -2x +5 =(x +9)
-2x +5= x +9
-2x - x = 9 -5
-3x = 4
x = 4/-3 = -1 1/3