25-4x+15=-24
=>40-4x=-24
=>4x=40+24=64
=>x=64/4=16
25-4x+15=-24
=>40-4x=-24
=>4x=40+24=64
=>x=64/4=16
tìm x,biết
x+3-24-25=7-9-15
tìm x thuộc N biết
(4x+25):5-15=1000
Tìm X biết:
a,7X-15=25-X
b,X-15=9+4X
c,8X-4=20+2X
Tìm x, biết:
a) 1230 : 3 ( x - 20 ) = 10
b) 250 - 10 ( 24 - 3 x ) : 15 = 244
c) 4 x 3 + 15 = 47
d) 65 - 4 x + 2 = 2014 0
e) 4 . 2 x - 3 = 125
Tìm x, biết:
a, 1230 : 3(x – 20) = 10
b, 250 – 10.(24 – 3x):15 = 244
c, 4 x 3 + 15 = 47
d, 65 - 4 x + 2 = 2014 0
e, 4 . 2 x - 3 = 125
Tìm x, biết:
a) 4 x + 18 : 2 = 13
b) 2 x - 2 0 = 3 5 : 3 3
c) 48 - 3 ( x + 5 ) = 24
d) ( 15 + x ) : 3 = 3 15 : 3 12
Tìm x, biết:
a, 4x+18:2 = 13
b, 48 – 3(x+5) = 24
c, 2 x - 2 0 = 3 5 : 3 3
d, (15+x):3 = 3 15 : 3 12
tìm x
17x – ( -16x – 37) = 2x +
-2x –3. (x – 17) = 34 – 2(-x + 25
17x + 3. ( -16x – 37) = 2x + 43 - 4x
103 -57: [-2. (2x – 1)2 – (-9)0] = -106
3x – 32 > -5x + 1
15 + 4x < 2x – 145
-3. (2x + 5) -16 < -4. (3 – 2x)
-2x + 15 < 3x – 7 < 19 – x
x + (x+1) + (x+2) + (x+3) + .... + 13 + 14 = 14
25 + 24 + 23 +...+ x + (x - 2) + (x – 3) = 25
tìm số nguyên x biết
x-(-18)=-24
-x-17+8=33-19
15-(-4+7)=x-14
9-25=(7-x)-(25+7)