2x-138 = 8.9
2x - 138 = 72
2x = 138 + 72
2x = 210
x = 210 : 2
x = 105
\(2x-138=8.9\)
\(2x-138=72\)
\(2x=72+138\)
\(2x=210\)
\(x=105\)
2x-138=8.9
2x-138=72
2x = 72 + 138
2x = 210
x = 210 : 2
x = 105
2x-138 = 8.9
2x - 138 = 72
2x = 138 + 72
2x = 210
x = 210 : 2
x = 105
\(2x-138=8.9\)
\(2x-138=72\)
\(2x=72+138\)
\(2x=210\)
\(x=105\)
2x-138=8.9
2x-138=72
2x = 72 + 138
2x = 210
x = 210 : 2
x = 105
tim x
a, 70-5.(x-3)=45
b, 2x-138=8.9
c, 10+2n=16
d, [(4x+28).3+55]:5=35
2.x - 138= 8.9
708-3:(x+3 mu 1)=407
2.x+15=134:2
114-2.(2x+11)=80
12.x-33=3 mu 2. 3 mu3
200-8.(2.x+7)=112
2 mu 4:(x+1)+2=6
2448-(5.x+148)=2. 10 mu 3
125:x+100=125
2.x-138=8.9
145-x=98+32
Giup em giai nhung bài nay ho a
a) 42-x=5
b) 15.(x+4)=75
c) 27+3x=9^8.9^7
d) x+18=12
e) 2x-15=-19
f) 36 :(x^3-12)=-3
g)x+15=35
h) 2x-13=3^2
2x - 138= 72
2x-138=72
d)2x - 138=22 32
72-x=50
2x-138=72
5.3x = 135
Rút gọn biểu thức :
G = \(\frac{8.9+8.9.10+8.9+11+8.9+2}{4.6+4.6.6+4.6.4+4.6.8}\)