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(x-5)+(42-73)=120 giải chi tiết dùm
19 tháng 10 2023 lúc 21:49
1.
a) 2x + 5 = 34 : 32
b) ( 3x - 24 ) . 73 = 2.74
c) [ 3 . ( 42 - x ) + 15 = 23 . 3
d) 126 + ( 132 - x ) = 300
2.
a) 120 - ( x + 55 ) = 60
b) ( 7x - 11)3 = 25 .52 + 200
c) 2x + 2x+4 = 544
3.
a) 10 + 2x = 49 : 47
b) 70 - 5 ( x - 3 ) = 45
c) 4 + 95 : x = 143 : 142 - 23
tim so nguyen x
(3x - 25) - (x - 9) = 2 - x
2x + (-73 - 120) - (20 - 120) = 5
Tim so nguyen x
a) (3x - 25) - (x - 9) = 2 - x
b) 2x + (-73 - 120) - (20 - 120)=5
Giup tui voi "^"
10) x - [42 + (-28)] = -8
11) (7 - x) - (25 + 7)=- 25
12) (3x - 24). 73 = 2.74
13) ( x – 4)² = 25
14) 24( 2x + 11)² = 42
15) 73x-2 – 3.73 =73 . 4
Tìm số nguyên x biết:
a) 15-(-2x)=22+3x
b) 5.(17-3x)+24=4
c) 42:(x2+5)=3
d) 73-3x2=56:(-5)4
Làm 1 câu bất kì cũng dc ạ!
MONG MNG GIÚP E!
Tìm x
a. 126 - 2x = 12 - ( -28 )
b. 25 - 5 ( x+1) = 30 - 125
cc. | 3x - 1| - 25 = 73
d . 2( x+ 2 ) - 6 = 120 - 4x
b1:bỏ ngoặc rồi tinh hợp lí1) -( -66)+34+(-73)-27+99 2)54-(45-30+54)-30+5 3)42-56+33-(33-56+42)4)50-(47+50-18)+(47-18) 5) |25-24-10|-(28-30+4) 6)-(-73)+(44-94+27)+947) (-33+180-75)-(180+25) 8)120-(-92+120-18)-92B2:tìm x biết1)x+186-2x 2)17-x7-6x 3)x+1520-4x 4)7x-420+3x 5)-12+x5x-20 6)4x-18x+277) 2.(x-5)-3.(x+7...
Đọc tiếp
b1:bỏ ngoặc rồi tinh hợp lí
1) -( -66)+34+(-73)-27+99 2)54-(45-30+54)-30+5 3)42-56+33-(33-56+42)
4)50-(47+50-18)+(47-18) 5) |25-24-10|-(28-30+4) 6)-(-73)+(44-94+27)+94
7) (-33+180-75)-(180+25) 8)120-(-92+120-18)-92
B2:tìm x biết
1)x+18=6-2x 2)17-x=7-6x 3)x+15=20-4x 4)7x-4=20+3x 5)-12+x=5x-20 6)4x-18=x+27
7) 2.(x-5)-3.(x+7)=14 8)5.(x-6)-2.(x+3)=12 9)-7.(5-x)-2.(x-10)=15 10)3. ( x - 4 ) - ( 8 - x )=12
11)4.(x-5)-(x+7)=-19 12)7.(x-3)-5.(3-x)=11x-5
tìm x
71-(33+x)=76
(x+73)-26=76
45-(x+9)=6
x-73-(-14)=45
(x-7)-25=-13
(x-4)-120= -100