1)tìm x bt:
a)7.2x=56
b)(2x+1)3=9.81
c)x3=82
d)4.2x-3=1
e)2.3x=162
2.3x=10.312+8.274
2.3x+3=10.312 + 8.312
2.3x + 5.3x + 1 = 153
2.3x=10.312+8.274
mình thêm nhé
4.3x+2 − 2.3x+1 = 810
2.3x+1 = 10. 312 + 8. 312
-1/2.3x+3/4=-2,25
Tìm x, biết:
2x+2.3x+1.5x=10800
2.3x-1=53
cíu nhanh mn ớiii