Question

[Cold Boy]

a) x\(\overline{4}\)+5x=142

b)\(\overline{1x3}\)+\(\overline{4x}\)+15+202

Answer 1

[Nguyễn Lê Phước Thịnh]

a: \(\overrightarrow{x4}+5x=142\)

\(\Leftrightarrow40x+4+5x=142\)

=>45x=138

hay x=46/15

b: \(\Leftrightarrow100+10x+3+40+x+15=202\)

=>11x=202-158=44

hay x=4