2. 2,3x=512
3. 5(x+1)=125
4. 2(2×-1)=32
5. 9 (2x+1)=3(x+14)
Tentunan nilaix dari persamaan berikut
tolong jwb ya rapi
1.3 ,4x=81
Jawaban:
1. x = 23.82
2. x = 222.61
3. x = 24
4. x = 8.5
5. x = 2.2
Penjelasan dengan langkah-langkah:
1.
3.4x =81
x = 81/3.4
x = 23.82
2.
2.3x =512
x = 512/2.3
x = 222.61
3.
5 (x+1) = 125
5x + 5 = 125
5x = 125-5
5x = 120
x = 120/5
x = 24
4.
2 (2x-1) = 32
4x – 2= 32
4x = 32+ 2
4x = 34
x = 34/4
x = 8.5
5.
9 (2x+1) = 3(x+14)
18x + 9 = 3x + 42
18x – 3x = 42 – 9
15x = 33
x = 33/ 15
x = 2.2