Question

Alguem aew que sabe matemática t-t?
10x+x-9+x=8x-5

Answer 1

10x+x-9+x=8x-5
10x+x+x-8x=9-5
4x=4
x=4:4
x=1

Answer 2

10x+x-9+x=8x-5

10x+x+x-8x=9-5

12x-8x=-4

4x=4

x=4/4=1