Question

Ajuda aqui gente nessas duas conta

Answer 1

l) (x-3)/4 - (2x-1)/5 = 5
5x-15 -8x + 4 = 100
-3x -11 = 100
-3x=111
x = -111/3

m) 5x-10=(x+1)/2
10x-20=x+1
9x=21
x=(21/9)
x=7/3