tentukan nilai x dari persamaan linear satu variabel. a.2(x-3)=4(x-2) b.2(x-30)=4(x-2) c.12-6x=6 d.4x-2=2x+5 e.x+20=52-7x

a.2 (x-3)=4 (x-2)
Penyelesaian.
2x-6 = 4x -8
2x -4x = 6-8
- 2x = -2
x -2 /-2 =1
b.2 (x-30)=4 (x-2)
2x -60 = 4x-8
2x -4x = 60-8
- 2x = 52
x = 52/-2=-26

c.12-6x=6
Penyelesaian.
12-6x=6
6x = -12+6
6x = -6
x= -6/6=-1

d.4x-2 = 2x+5
Penyelesaian.
4x -2x=2 +5
-2x = 7
x = 7/-2=-3,5

e.x+20=52-7x
Penyelesaian.
x+7x = -20 +52
8x = 32
x = 32/8=4


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