Question

133+x+57=218.........​

Answer 1

Объяснение:

$133 + x + 57 = 218 \\ 190 + x = 218 \\ x = 218 - 190 \\ x = 28$

Answer 2

$\displaystyle 133+x+57=218\\190+x=218\\x=218-190\\x=28$