Question

Tolong kasih tau cara yang nomor 7. Thank u

Answer 1

X-3/2 + 1/3 = x+2/3 - 2/4
3(x-3)/6 + 2.1/6 = 4(x+2)/12 - 3.2/12
3x-9/6 + 2/6 = 4x+8/12 - 6/12
3x-7/6 = 4x+2/12
12(3x-7) = 6(4x+2)
36x - 84 = 24x + 12
36x - 24x = 12 + 84
12x = 96
x = 96/12
x = 8 (A)

Answer 2

Di kali silang masing masing ruas
3 x ( x - 3 ) + 1 x2 = 4 x ( x + 2 ) - 3 x 2
3x - 9 + 2 = 4x + 8 - 6
3x - 7 = 4x + 2
setelah itu dipindah ruas (dikelompokkan yang mengandung x)
3x - 4x = 7 + 2
-x = 9
x = -9