Question

решите уравнения
5(y+1,2)=7y+4
4(x-3)-16=5(x-5)
3x-17=8x+18
11-5y=12-6y
4y+(11,8-y)=3,8-5y
3x+16=8x-9

Answer 1

5(y+1,2)=7y+4
5y+6=7y+4
-2y=-2
y=1

4(x-3)-16=5(x-5)
4x-12-16=5x-25
-x=-3
x=3

3x-17=8x+18
-5x=1
x= -1/5

11-5y=12-6y
y=1

4y+(11,8-y)=3,8-5y
4y+11,8-y=3,8-5y
8y=-8
y=-1

3x+16=8x-9
-5x=-25
x=5