a.11-(-53+x)=97 b.-(x+84)+213=-16
Tìm x
a)11-(-53+x)=97
b)-(x+84)+213=-16
a)11-(-53+x)=97
11+53+x=97
64+x+97
x=97-64
x=33
b)-(x+84)+213=-16
-(x+84)=-16-213
-(x+84)=-229
-x=-229-84
-x=-313
x=313
Tìm x biết:
a) 461+(x-45)=387
b) 11-(-53+x) = 97
c) -(x+84)+213=-16
461+(x-45)=387
11-(-53+x)=97
-(x+84)+213=-16
a) 461+x-45=387
<=> 416+x=387
<=> x= -28
b) 11+53-x=97
<=> 64-x=97
<=>x=-33
c) -x-84+213=-16
<=>-x+129=-16
<=> x=145
Tìm x:
a) 461+(x-45)=387
b)11-(-53+x)=97
c) -(x+84)+213=-16
Help me!! Thank you !!!!
a) 461 + (x – 45) = 387
x – 45 = 387 – 461
x – 45 = -74
x = -74 + 45
x = -29
Vậy x = -29
b) 11 – (-53 + x) = 97
-53 + x = 11 – 97
-53 + x = -86
x = -86 – (-53)
x = -33
Vậy x = -33
c) -(x + 84) + 213 = -16
-(x + 84) = -16 – 213
-(x + 84) = -229
-x – 84 = -229
-x = -229 + 84
-x = -145
\(\Rightarrow\)x = 145
Vậy x = 145
Tick cho mình nhé!!!
461 + (x - 45 ) = 387
11 - (-53 +x) = 97
- ( x+84 ) + 213 = -16
tìm x
461 + (x - 45) = 387
x - 45 = 387 - 461
x - 45 = -74
x = -74 + 45
x = -29
11 - (-53 + x) = 97
-53 + x = 11 - 97
-53 + x = -86
x = -86 - -53
x = -33
- (x+84) + 213 = -16
x - 84 + 213 = -16
x - 84 = -16 - 213
x - 84 = -229
x = -229 + 84
x = -145
461 + ( x - 45 ) = 387
x - 45 = 387 - 461
x - 45 = - 74
x = - 74 + 45
x = - 29
Vậy x = - 29
11 - ( - 53 + x ) = 97
- 53 + x = 11 - 97
- 53 + x = - 86
x = - 86 - ( - 53 )
x = - 33
Vậy x = - 33
461+9x-450=387
11-(-53+x)=97
-(x+84)+213=-16
\(\frac{93}{461}\)
-33
\(\frac{-17876}{213}\)
a) (19x+2.5^2):14=(13-8)^2-4^2
b) x+(x+1)+(x+2)+...+(x+30)=1240
c) 11-(-53+x)=97
d) -(x+84)+213=-16
1.Tìm x∈Z, biết:
a)461+(x-45)=387
b)-12(x-5)+7(x-3)=5
c)11-(-53+x)=97
d)-(x+84)+213= -16
a) 461+(x-45)=387
<=>461+x-45=387
<=>416+x =387
<=>x =387-416
<=>x =-29
b) -12(x-5)+7(x-3) =5
<=>-12x+60+7x-21=5
<=>-5x+39 =5
<=>-5x =5-39
<=>-5x =-34
<=>x =(-34):(-5)=6,8
c) 11-(-53+x)=97
<=>11+53-x =97
<=>64-x =97
<=>x =64-97=-33
(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