42-[5x-(-32)]=0
42-[5x+32]=0
5x+32=42-0
5x+32=42
5x =42-32
5x =10
x =10:5
x =2
Vậy x = 2
42-[5x-(-32)]=0
42-[5x+32]=0
5x+32=42-0
5x+32=42
5x =42-32
5x =10
x =10:5
x =2
Vậy x = 2
Tìm số tự nhiên x, biết
a, 2 x : 4 = 32
b, 3 x : 3 2 = 243
c, 256 : 4 x = 4 2
d, 5 x : 25 = 25
e, 5 x + 1 : 5 = 5 4
f, 4 2 x - 1 : 4 = 16
Thực hiện phép tính:
a. 142-[50-(\(2^3\)x10-\(2^3\)x5)]
b. 375:{32[4+(5x\(3^2\)-42)]} - 14
c.{210:[16+3.(6+3x\(2^2\))]} - 3
d. 500-{5x[409-(\(2^3\) x3-21)\(^2\)] - 1724
[(46 - 32)^2-(54-42)^2].2.x-1872=0
Tìm x:
(42 - 3x) . (5x - 75) = 0
Cần gấp
tìm x
5x - x + 2x = 42
( x - 2 ) . ( 3 - x ) = 0
a) ( x - 25 ) - 110 = 0
b) 124 + ( 118 - x ) = 142
c) 124 - ( 3x + 22 ) = 42
d) x - 32 : 16 = 18
e ) ( x - 32 ) : 16 = 18
f) 294 : ( 19 - 2.x ) = 42
Tìm x biết:
5x + 5.2 - ( 32 +16.3 : 6 -15) = 0
a, 45 - 3x = 15
b 4x - 20 = 32
c 2x : 16 = 14
d 0 : 5x = 0
e 3240 : 9x = 18