TA CÓ: X+56-3X=4

-2X=-52

2X=52

X=26

X + 56 - X - X - X + 1 = 5

X - 3 x X + 57 = 5

57 - 5 = 3 x X - X

52 = 2 x X

X = 26

3/5 X + 2X + 40 = 53

 13/5 X              = 53 - 40

 13/5 X              = 13

    X                   = 13 : 13/5

    X                  = 5

\(\frac{3}{5}x+2x+40=53\)

\(\Leftrightarrow\frac{13}{5}x+40=53\)

\(\Leftrightarrow\frac{13}{5}x=53-40\)

\(\Leftrightarrow\frac{13}{5}x=13\)

\(\text{Mẫu chung:5}\)

\(\Leftrightarrow13.5x=13.5\)

\(65x=65\)

\(\Rightarrow x=1\)

Nhân chia trước cộng trừ sau :

98 x 56 + 500 - 38 + 2 x 5 x 5 - 6000 =5488 + 500 - 38 + 50 - 6000 = 0

k mình nha

hok tốt

kết quả bằng 0

\(26+5\times x=3\times x+56\)

\(5\times x-3\times x=56-26\)

\(x\times\left(5-3\right)=30\)

\(x\times2=30\)

x=30:2

x=15

26+5.3=3.x+56

5.x-3.x=56-26

5.x-3.x=30

2x       =30

  x       =30:2

  x       = 15         (dấu chấm là dấu nhân) k cho mk nha

56x24:12=56x2=112

56x24:3x8=56x24:24=56

63x18:9=63x2=126

\(a,\)\(\left(5x-15\right)\div5=0\)

\(\Rightarrow x-3=0\)

\(\Rightarrow x=3\)

\(b,\)\(84-4\left(2x+1\right)=48\)

\(\Rightarrow84-8x-4=48\)

\(\Rightarrow8x=32\)

\(\Rightarrow x=4\)

a) 20160 : x = 56

x = 20160 : 56

x = 360

b) x + 5270 = 1582 × 5

x + 5270 = 7910

x = 7910 - 5270

x = 2650

c) x - 735 = 9828 : 52

x - 735 = 189

x = 189 + 735

x = 924

a. 20160 : x = 56
Ta có:
x = 20160 : 56
x = 360
Vậy x = 360
b. x + 5270 = 1582 × 5
Ta có:
1582 × 5 = 7910
x = 7910 - 5270
x = 2640
Vậy x = 2640
c. x - 735 = 9828 : 52
Ta có:
9828 : 52 = 189
x = 189 + 735
x = 924
Vậy x = 924