Question

5+10x+2+10x-1=7x
alguem sabe? me ajudem porfavor?!!

Answer 1

5+10x+2+10x-1=7x
10x+10x-7x=1-2-5
10x+3x=1-7
13x=-6
x=-6/13

Answer 2

5+10x+2+10x-1=7x

10x+10x-7x=-5-2+1

13x=-6

x=-6/13