Question

a/ x -105 : 3 = (-23)
b/ 96 - 3(x - 5) = 57

Giúp mình với huhu

Answer 1

\(a,x-105=-69\)

\(\Leftrightarrow x=36\)

\(b,3\left(x-5\right)=96-57\)

\(\Leftrightarrow3\left(x-5\right)=39\)

\(x-5=39:3\)

\(\Leftrightarrow x-5=13\)

\(\Leftrightarrow x=18\)