( 234 + 33 ) + ( 64 + 69 ) + x = 500
276 + 133 + x = 500
( 276 + 133 ) + x = 500
400 + x = 500
x = 500 - 400
x = 100
267 + 133 + x = 500
(133 + x) = 500 - 267
133 + x = ###
tự biết đi nha
( 234 + 33 ) + ( 64 + 69 ) + x = 500
267 + 133 + x = 500
400 + x = 500
x = 500 - 400
x = 100
Vậy x = 100
( 234 + 33 ) + ( 64 + 69 ) + x = 500
267 + 133 + x = 500
400 + x = 500
x = 500 - 400
x = 100
Vậy x = 100
( 234 + 33 ) + ( 64 + 69 ) + x = 500
267 + 133 + x = 500
400 + x = 500
x = 500 - 400
x = 100
\(\left(243+33\right)+\left(64+69\right)+x=500\)
\(267+133+x=500\)
\(400+x=500\)
\(x=500-400\)
\(x=100\)