Question

HELP ME!!!!!!!!!!!!!!!!!! sunt ecuatii !!!!!!!!!!!!!!!!!!!!!!
7/8x=1 intreg1/4
5/54x=- 1intreg 7/41
2x- 1 2/3 = 0,25
1,35-3x=-6 intreg si 1/3

Answer 1

7/8x=5/4
7·4=5·8x
40x=28
x=28/40=7/10
x=7/10

5/54x=-48/41
5·41=-48·54x
205=-2592x
2592x=-205
x=-205/2592

2x-5/3=25/10
2x=25/10+5/3
2x=(25·3+5·10)/30
2x=(75+50)/30
2x=125/30
2x=25/6
12x=25
x=25/12

135/100-3x=19/3
-3x=19/3-135/100
-3x=(19·100-135·3)/300
-3x=(1900-405)/300
-3x=1495/300
-3x=299/60
-180x=299     ·(-1)
x=-299/180