Ответ:
1) 4-7x/15 + 1-x/3 =4-2x+1/5 | (* 15)
60-7x+15-5x=60-30x+3
30x-12x=63-75
18x= -12
x= -12/18= -1/3
2) 10-y/6 +3y+8/3 =y+6/2 | (*6)
60-y+18y+16=6y+18
17y-6y=18-76
11y= -58
y= -58/11
3) 3x+5/5 + 9x-5/4 = 6+3x+1/2
3x+1+9x-5/4=6+3x+1/2 | (*4)
12x+4+36x-5=24+12x+2
48x-12x=26-4+5
36x=27
x=27/36=3/4
4) 5-9x/8 - 3+5x/4 = 5-3x/2 | (*8)
40-9x-24+10x=40-12x
x+12x=40-16
13x=24
x=24/13
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Verified answer
Ответ:
1) 4-7x/15 + 1-x/3 =4-2x+1/5 | (* 15)
60-7x+15-5x=60-30x+3
30x-12x=63-75
18x= -12
x= -12/18= -1/3
2) 10-y/6 +3y+8/3 =y+6/2 | (*6)
60-y+18y+16=6y+18
17y-6y=18-76
11y= -58
y= -58/11
3) 3x+5/5 + 9x-5/4 = 6+3x+1/2
3x+1+9x-5/4=6+3x+1/2 | (*4)
12x+4+36x-5=24+12x+2
48x-12x=26-4+5
36x=27
x=27/36=3/4
4) 5-9x/8 - 3+5x/4 = 5-3x/2 | (*8)
40-9x-24+10x=40-12x
x+12x=40-16
13x=24
x=24/13