\(x+63-23=156\)
\(x+40=156\)
\(x=156-40\)
\(x=116\)
chúc học tốt
x+63-23=156
x+40 =156
x = 156-40
x = 116
x+63-23=156
x+ 40 =156
x =156-40
x =116.
x+63-23=156
x+63=156+23
x+63=179
x=179-63
x=116
x+63-23=156
x+40=156
x=156-40
x=116
nhớ k cho mình nha
x + 63 - 23 = 156
x + 63 = 156 + 23
x + 63 = 179
x = 179 - 63
x = 116