(3.4.2^16)^2/11.2^13.4^11-16^9.Tính bằng cách hợp lý
Câu 2:
a,(19x+2.5^2):14=(13-8)^2-4^2
b,x+(x+1)+(x+2)+...+(x+30)=1204
c,11-(-53+x)=97
d,-(x+84)+213=-16
11 - (x+48) = 97
-(x+48) + 213 = -16
tìm x
Tìm x, biết :
- ( x + 84 ) + 213 = -16
| x + 2 | = 341 + ( - 25 )
| x + 7 | = | - 15 |
19 - | x - 1 | = 4
giúp mk nha ! ai nhanh mk tick
461 + (x - 45 ) = 387
11 - (-53 +x) = 97
- ( x+84 ) + 213 = -16
tìm x
A =1/6 x 11 + 1/11 x 16 + 1 phần 16 x 21 + ........+ 1/496 x 501
B = 2/3 +2/15 + 2/ 35 +.....+2/19 x21
Tìm x
a)11-(-53+x)=97
b)-(x+84)+213=-16
11-(x+84)=97
-(x+84)+213=-16
x+(-35)=18
-2x-(-17)=15
Tìm x
a) \(\left(19.x+2.5^1\right):14=\left(13-8\right)^2-4^2\)
b) \(-\left(x+84\right)+213=-16\)
a.11-(-53+x)=97 b.-(x+84)+213=-16
timx
461+(x-45)=387
11-(-53+x)=97
-(x-840+213=-16