Question

7(x-2)+3x+7=3y+1
10-5x=4(x-3)+4

Answer 1

Ответ:

7x-14+3x+7=3y+1

10-5x=4x-12+4

4x-7=3y+1

10+12-4=5x+4x

4x-3y=8/×9

9x=18/×-4

36x-27y=72

-36x=-72

-27y=72+72. -27y= 144

y=-5,3