1. 2(x+4)+5=x+4
2. 2 (3x-4)-(4x+3)=2x-1
3. 2[4(x-1)+(2x-1)] – (3x+5)=12
4. 40 x=150×8/3
Tentukan nilai x dari=
Jawaban terlampir yaa
1. 2x + 8 + 5 = x + 4
2x – x = 4 – 5 – 8
x = – 9
2. 6x – 8 – 4x – 3 = 2x – 1
6x – 4x – 2x = 8 + 3 + 1
0 = 12 [soalnya tidak tepat]
3. 8x – 8 + 4x – 2 – 3x – 5 = 12
8x + 4x – 3x = 12 + 8 + 2 + 5
9x = 27
x = 3
4. 40x = 400
x = 10