Question

Tentukan nilai x...
a. 3x+8=7
b. 2x-2=3x-10
c. 5x-8=-10x-4
d.2x-12=1/4x+1/2
e. 2x-2y-7=3y-2x+10
f. 1/2x - 2y=3x-2/3y+6

Answer 1

Verified answer

Bagian A
3x + 8 = 7
3x = 7 - 8
x = - ⅓

Bagian B
2x - 2 = 3x - 10
3x - 2x = -2 + 10
x = 8

Bagian C
5x - 8 = -10x - 4
5x + 10x = -4 + 8
15x = 4
x = 4/15

Bagian D
2x - 12 = ¼ x + ½
2x - 12 = (x + 2)/4
4(2x - 12) = x + 2
8x - 48 = x + 2
8x - x = 2 + 48
x = 50/7

Bagian E
2x - 2y - 7 = 3y - 2x + 10
2x + 2x - 2y - 3y = 10 + 7
4x - 5y = 17

Bagian F
½ x - 2y = 3x - ⅔ y + 6
½ x - 3x - 2y + ⅔ y = 6
ke dua ruas di kali 6
3x - 18x - 12y + 4y = 36
-15x - 8y = 36
15x + 8y = -36

semoga berguna +_+