13 - ( x + 32) = 29
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a ) 25 - ( - 75 ) + 32 - ( 32 + 75
= 25 + 75 + 32 - 32 - 75
= 100 + 0 - 75
= 25
b ) 24 . ( 16 - 5 ) - 16 . ( 24 - 15 )
= 24 . 11 - 16 . 9
= 264 - 144
= 120
c ) 29 . ( 19 - 13 ) - 19 - ( 29 - 13 )
29 . 6 - 19 - 29 + 13
= 174 - 19 - 29 + 13
= 126 + 13
= 139
d ) ( 55 + 45 15 ) - ( 15 - 55 + 45 )
= 4570 - 15 + 10
= 4555 + 10
= 4565
a. 15 . 12 - 3 . 5 . 10
= 15 . 12 - 15 . 10
= 15 . (12 - 10)
= 15 . 2
= 30
b. 45 – 9.(13 + 5)
= 45 – (9 . 13 + 9 . 5)
= 45 – 9 . 13 - 9 . 5
= 45 – 117 - 45
= 45 - 45 - 117
= 0 - 117
= -117
c. 29. (19 – 13) – 19.(29 -13)
= 29 . 19 – 29 . 13 – (19 . 29 - 19 . 13)
= 29 . 19 – 29 . 13 – 19 . 29 + 19 . 13
= 29 . 19 - 19 . 29 - 29 . 13 + 19 . 13
= (29 . 19 - 19 . 29) - (29 . 13 - 19 . 13)
= 0 - 13 . (29 - 19)
= 0 - 13 . 10
= 0 - 130
= -130
d. 25 - (-75) + 32 – (32 + 75)
= 25 + 75 + 32 – 32 - 75
= (32 – 32) + (75 - 75) + 25
= 0 + 0 + 25
= 25
a) = 29 +37 + 13 +10 - 37 - 13
= 39
b) 79 +32 - 35 - 69 - 12 +75
= 70
3)\(\dfrac{-41}{32}\left(\dfrac{15}{8}-\dfrac{16}{41}\right)+\dfrac{15}{8}\left(\dfrac{41}{32}-\dfrac{8}{3}\right)\)
=\(\dfrac{-41}{32}.\dfrac{15}{8}-\dfrac{-41}{32}.\dfrac{16}{41}+\dfrac{15}{8}.\dfrac{41}{32}-\dfrac{15}{8}.\dfrac{8}{3}\)
=\(\left(\dfrac{-41}{32}.\dfrac{15}{8}+\dfrac{15}{8}.\dfrac{41}{32}\right)+\dfrac{-16}{41}.\dfrac{-41}{32}-\dfrac{15}{8}.\dfrac{8}{3}\)
=\(0+\dfrac{1}{2}-5=\dfrac{-9}{2}\)
4)\(\dfrac{13}{29}\left(\dfrac{29}{5}-\dfrac{45}{8}\right)-\dfrac{45}{8}\left(\dfrac{9}{8}-\dfrac{13}{29}\right)\)
=\(\dfrac{13}{29}.\dfrac{29}{5}-\dfrac{45}{8}.\dfrac{13}{29}-\dfrac{45}{8}.\dfrac{9}{8}-\dfrac{45}{8}.\dfrac{13}{29}\)
=\(\left(\dfrac{45}{8}.\dfrac{13}{29}-\dfrac{45}{8}.\dfrac{13}{29}\right)-\dfrac{13}{29}.\dfrac{29}{5}-\dfrac{45}{8}.\dfrac{9}{8}\)
=\(0-\dfrac{13}{5}-\dfrac{405}{64}=\dfrac{-2857}{320}\)
13 - (x + 32 ) = 29
x+32 = 13- 29
= -16
x= -16- 32
= -48
x + 32 = 29 + 13
x + 32 = 41
x = 41 - 32
x = 9