Ответ:
2x+5=2(x+1)+11
2x+5=(2x+2)+11
2x-2x=11-5-2
x=4
3y-(y-19)=2y
3y-2y+y=19
2y=19
y=9,5
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Ответ:
2x+5=2(x+1)+11
2x+5=(2x+2)+11
2x-2x=11-5-2
x=4
3y-(y-19)=2y
3y-2y+y=19
2y=19
y=9,5