\(a,11070:\left\{15.\left[356-\left(2110-2000\right)\right]\right\}\)
\(=11070:\left[15.\left(356-110\right)\right]\)
\(=11070:\left(15.246\right)\)
\(=11070:3690\)
\(=3\)
\(b,62500:\left\{50^2:\left[112-\left(52-2^3.5\right)\right]\right\}\)
\(=62500:\left\{50^2:\left[112-\left(52-40\right)\right]\right\}\)
\(=62500:\left[50^2:\left(112-12\right)\right]\)
\(=62500:\left(50^2:100\right)\)
\(=62500:25\)
\(=2500\)
Thực hiện phép tính :
a) 11070 : {15 . [ 356 – ( 2110 – 2000 )]}
b) 62500 : { 50 2 : [ 112 – ( 52 – 2 3 . 5 )]}
c) 3 3 . 5 3 – 20 . { 300 – [ 540 – 2 3 ( 7 8 : 7 6 + 7 0 )]}
62500:{502:[112-(52-23.5)]}
Thực hiện phép tính :
a) 11070 : {15 . [ 356 – ( 2110 – 2000 )]}
11070:15[356-(2110-2000)
Thực hiện phép tính:
11070:15.(356-(2110-2000))
Thực hiện phép tính :
b) 62500 : { 50 2 : [ 112 – ( 52 – 2 3 . 5 )]}
Thực hiện phép tính :
c) 3 3 . 5 3 – 20 . { 300 – [ 540 – 2 3 ( 7 8 : 7 6 + 7 0 )]}
3 mũ 3. 5 mũ 3 - 20 . { 546 - 2 mũ 3 ( 7 mũ 8 : 7 mũ 6 + 7 mũ 0 )]}
62500: {50 mũ 2 : [112-(52-2 mũ 3. 5)]}
1.
a) 2x + 5 = 34 : 32
b) ( 3x - 24 ) . 73 = 2.74
c) [ 3 . ( 42 - x ) + 15 = 23 . 3
d) 126 + ( 132 - x ) = 300
2.
a) 120 - ( x + 55 ) = 60
b) ( 7x - 11)3 = 25 .52 + 200
c) 2x + 2x+4 = 544
3.
a) 10 + 2x = 49 : 47
b) 70 - 5 ( x - 3 ) = 45
c) 4 + 95 : x = 143 : 142 - 23
