Question

3x-5 mas 2x=7x mas 2
5-x/3=x/2 mas 6
2(x mas 1)/5-3(x-1)/10=7x mas 1/10

Answer 1

3x-5 + 2x=7x + 2

5x-5=7x-2

5x-7x=2+5

-2x=7

x= - 7/2

5-x/3=x/2 + 6

30-2x=3x+36

-2x-3x=36-30

-5x=6

x= -6/5

la última no sé