\(x-5=-1\)
\(x=4\)
\(x+30=-4\)
\(x=-34\)
\(x+24=3\)
\(x=-21\)
\(22-\left(-x\right)=12\)
\(22+x=12\)
\(x=33\)
x - 5 = -1 => x = -1 + 5 = 4
x + 30 = -4 => x = -4 - 30 = -34
x - (-24) = 3 => x + 24 = 3 => x = 3 - 24 => x = -21
22 - (-x) = 12 => 22 + x = 12 => x = 22 - 12 = 10
( x + 5 ) + ( x - 9 ) = x + 2
=> x + 5 + x - 9 = x + 2
=> 2x + 5 - 9 = x + 2
=> 2x = x + 2 + 9 - 5 = x + 6
=> x = 6
\(\left(x+5\right)+\left(x-9\right)=x+2\)
\(x+5+x-9=x+2\)
\(x-x+14=x+2\)
\(14=x+2\)
\(12=x\Rightarrow x=12\)
\(\left(x-29\right)-\left(17-38\right)=-9\)
\(x-29-17+38=-9\)
\(x-50=-9\)
\(x=41\)
( x - 29 ) - ( 17 - 38 ) = -9
=> x - 29 - 17 + 38 = -9
=> x - ( 29 + 17 - 38 ) = -9
=> x - 8 = -9
=> x = -9 + 8
=> x = -1
a) x-5=-1
=> x = - 1 + 5
=> x = 4
Vậy x= 4
b) x+30=-4
=> x = - 4 - 30
=> x = - 34
Vậy x = - 34
c) x-(-24)=3
=> x + 24 = 3
=> x = 3 - 24
=> x = - 21
Vậy x = - 21
d) 22-(-x)=12
=> 22 + x = 12
=> x = - 10
e) (x+5)+(x-9)=x+2
=> x + 5 + x - 9 = x + 2
=> 2x - 4 = x + 2
=> 2x - x = 2 + 4
=> x = 6
Vậy x = 6
f) (x-29)-(17-38)=-9
=> x - 29 - 17 + 38 = - 9
=> x - 84 = - 9
=> x = -9 + 84
=> x = 75
Vậy x = 75
!!! K chắc đúng hết đâu
@@ Học tốt
Chiyuki Fujito
x-5=-1
x=-1+5
x=6
Vậy x=6.
x+30=-4
x=-4-30
x=-34
Vậy x=-34.
x-(-24)=3
x=3+(-24)
x=-21
Vậy x=-21.
22-(-x)=12
-x=22-12
-x=10
=) x=-10
Vậy x=-10.
(x+5)+(x-9)=x+2
=) x+5+x-9=x+2
=) 2x+5-9=x+2
=) 2x+(-4)=x+2
=) 2x-x=2-(-4)
=) x=6
Vậy x=6.
(x-29)-(17-38)=-9
(x-29)-(-21)=-9
x-29=-9+(-21)
x-29=-30
x=-30+29
x=-1
Vậy x=-1.
Chúc bn học tôt nha !
x-5=-1
x=-1+5
x=4
x+30=-4
x=-4-30
x=-34
x-(-24)=3
x+24=3
x=3-24
x=-21
22-(-x)=12
22+x=12
x=12-22
x=-10
(x+5)+(x-9)=x+2
x+5+x+9=x+2
x+x-x=2-5-9
x=-16
(x-29)-(17-38)=-9
(x-29)-(-21)=-9
(x-29)+21=-9
x-29=-9-21
x-29=-30
x=-30+29
x=-1