( 3 6 - 2x ) : 8 = 2
36 - 2x = 2.8
36 - 2x = 16
2x = 36 - 16
2x = 20
x = 20 : 2
x = 10
( 3 6 - 2x ) : 8 = 2
36 - 2x = 2.8
36 - 2x = 16
2x = 36 - 16
2x = 20
x = 20 : 2
x = 10
xy+ 3y=15
(2x - 3)2 = 36; (2x – 1)3 = -8.
Tìm x
a.2x+(1+2+3+4+...+100) = 15150
b.(x+1)+(x+2)+(x+3)+(x+4)+(x+5)+(x+6)+(x+7)+(x+8)=36
c.0+0+4+6+8+...+2x=110
1) ( 2x + 1 ) ^2 = 25
2) 5 ^x+2 = 625
3) ( 2x - 3 ) ^2 = 36
4) ( 2x - 1 ) ^3 = - 8
5) ( x - 1 ) ^x+2 = ( x - 1 ) ^x + 6 với x thuộc Z 19 . x^2 + x = 0
1, x^2-3=22
2, 2x^3+5=-11
3, (x+2)^2=81
4, (2x+1)^2=25
5, 5^x+2=625
6 , (2x-3)^2=36
7,(2x-1)^3=-8
8, (x-1)^x+2=(x-1)^x+6 voi x thuoc z
9, x^2+x=0
Tìm x:
a) \(\dfrac{x}{4}=\dfrac{4}{x}\)
b) \(\dfrac{x+7}{15}=-\dfrac{24}{36}\)
c) \(\dfrac{x+1}{8}=\dfrac{2}{x+1}\)
d) \(\dfrac{2x-1}{\left(-3\right)^2}=\dfrac{\left(-3\right)^2}{2x-1}\)
1. Tìm số tự nhiên x biết 1) 3^x . 3=243 2) 7.2^x=56 3) x^3=8 4)x^20=x 5) 2^x-15=17 6) (2x+1)^3=9.81 7) x^6:x^3=115 8) ( 2x-15)^5=(2x-15)^3 9) 3^x+2-5.3^x=36 10) 7.4^x-1+4^x+1=23 Giúp tớ bài này với
tìm số nguyên , biết :
a) (-4)2 + 21 + 2x = 36 : 33
b) 8 -2x = -12
c ) ( 79 + x ) - 43 = - (17 - 55 )
cứu mik vs 😱😱😘😘😫😫😭😭😓❤❤😔😅
timGTLNhoac GTNN cua:
A= /-x+8/-21
B= /-x-17/+/y-36/+12
D= -/2x-8/-35
D=3(3x-12)2 -37
Tìm x, biết:
x.(2x-8).(x^2-4)=0
-17.|x|=-85
|x|=|-10|
3x + 5 = 4x - 9
72 - 3x=5x+8
(x^2 - 36).(2|x| - 12).x = 0