tìm x, biết:
a, 5x + x = 39-311:39
b, 7x - x = 521:519+3.22-70
c, 7x - 2x = 617:615+44:11
Tìm x:
7x - x =521: 519+3.22- 707x -2x=617: 615 + 44:115x + x=39- 311:39Hepl me
a , 4x + 2x = 68 - 219 : 216
b , 5x + x = 39 - 311 : 39
c , 7x - x = 521 : 519 + 3.22 - 70
d , 7x - 2x = 617 : 615 + 44 : 11
\(7x-2x=6^{17}:6^{15}+44:11\)
\(7x-x=5^{21}:5^{19}+3.2^2-7\)
a, 5x+x=39-311 :39
b,7x-x=521:519+3x22-70
c,7x-2x=617:615+44:11
thực hiện phép tính :
520: [ 515 .6+515. 19]
tim x
5x +x =39-311:39
7x-x =521:519+3.22-70
7x -2x =617:615+44:11
các bạn giúp mình nha đang cần gấp hứa tick
a.7.x-x=5 mũ 21:5 mũ 19+3.2 mũ 2-7 mũ 0
b.7x-2x=6 mũ 17:6 mũ 15+44:11
ai làm giúp mk,mk cho 3 tk
tìm x biết
7x-x=521:519+3.22-70
7x-2x=617:615+44:11
6x+x=511:59+3
có lời giải nhé!!!
A) 78-2x=42
B)6x+39=75
C) 2^3.x+ 2.x=25.2^2
D) 21+7x = 56
E) 5x +2x = 6^2-5^0
F)15x + 3x = 450 : 2+9
G) 6x+x=5^11: 5^9+3^1
H) 5x + 3x=3^11: 3^8.4+12
i) 2^3.x + 2^2.x =136-2^20 : 2^16
j) 7x -x= 5^21: 5^19+3.2^2
k) 7x - 2x= 6^17: 6^15 + 44 :11
l) 0: x =0 m) 3^x=27 n) 4^x= 64
o) 2^x = 32 p) 9^x-1=81 q) x^4=16
r) 3^x :3^
p) 9^x-1=81
q) x^4=165=1
