Question

Решите уравнения
5y-(13+y)=y+14

3(2x-4)-2(x+3)=2

4y-3=2(7-y)+1

Answer 1

5y-(13+y)=y+14
5y-13-y=y+14
5y-y-y=13+14
3y=27
y=27;3
y=9

3(2x-4)-2(x+3)=2
6x-12-2x-6=2
4x=2+12+6=20
x=20:4
x=5

4y-3=2(7-y)+1
4y=3+14-2y+1
4y+2y=18
6y=18
y=18:3
y=6