c) \(47-\left(x-15\right)=21\)
\(\Leftrightarrow x-15=47-21\)
\(\Leftrightarrow x-15=26\)
\(\Leftrightarrow x=26+15=41\)
d) \(-5-\left(24-x\right)=-11\)
\(\Leftrightarrow24-x=-5+11\)
\(\Leftrightarrow24-x=6\)
\(\Leftrightarrow x=24-6=18\)
a) \(16-x=21-\left(-8\right)\)
\(\Leftrightarrow16-x=29\)
\(\Leftrightarrow x=16-29=-13\)
b) \(x-32=-5-17\)
\(\Leftrightarrow x-32=-22\)
\(\Leftrightarrow x=-22+32=10\)
c) 47 - ( x - 15 ) = 21
x - 15 = 47-21
x -15 = 26
x = 26+15
x = 41
d) mình ko ghi đề mà làm luôn nha
24 - x = -5 - (-11)
24 - x = -5 + 11
24 - x = 6
x = 24 -6
x = 18
a) 16 -x = 29
x =29 - 16
x = 13
b) x - 32 = -22
x = -22 +32
x =10
c) (x - 15 ) = 47- 21
(x -15 ) = 26
x = 26 + 15
x =41
d ) ( 24 - x) = -5 - (11)
( 24 - x ) = 6
x = 24 - 6
x = 18
tk cho mình nha ,