`(x+2)-6(x-5) -10x=2`
`=> x+2 - (6x-30)-10x=2`
`=> x+2-6x+30-10x=2`
`=> (x-6x -10x) + (2+30)=2`
`=> -15x + 32 =2`
`=> -15x=2-32`
`=> -15x= -30`
`=>x=(-30)/(-15)`
`=>x=2`
5(3-2x) 5(4-x)=6-4x
-5(2-x)+4(x-3)=10x-15
-7(5-x)-2(x-10)=15
-4(x+1)+89x-3)=24
5(x-30-2(x+6)=9
help,cần gấp
20 - 5 . ( 2 - x ) + 4 . (x - 3 ) =10x -15 " mong mn nhanh ạ vì mình cần gấp :"D"
a,5(3-2x)+5(x-4)=6-4x
b-5(2-x)+4(x-3)=10x-15
C,2(4x-8)-7(x-3)=|-4|(3-2)
d,8(x-|-7|)-6(x-2)=|-8|.6-50
-5(2-x)+4(x-3)=10x-15
giúp tôi nhanh nhé, đang cần gấp.
-5(2-x)+4(x-3) =10x + 15 (tìm x)
7(x-9)-5(6-x)=-6+11x
xy+14+2y+7x=-10 (tìm xy)
a 10x+2^2.5=10
b 125-5(4+x)=15
c 2^6+(218-x)=73
Bài toán 3 : Tìm x, biết.
a. 2(x – 5) – 3(x + 7) = 14 b. 5(x – 6) – 2(x + 3) = 12
c. 3(x – 4) – (8 – x) = 12 d. -7(3x – 5) + 2(7x – 14) = 28
e. 5(3 – 2x) + 5(x – 4) = 6 – 4x f. -5(2 – x) + 4(x – 3) = 10x – 15
g. 2(4x – 8) – 7(3 + x) = |-4|(3 – 2) h. 8(x – |-7|) – 6(x – 2) = |-8|.6 – 50
k. -7(5 – x) – 2(x – 10) = 15 l. 4(x – 1) – 3(x – 2) = -|-5|
m. -4(x + 1) + 89x – 3) = 24 n. 5(x – 30 – 2(x + 6) = 9
o. -3(x – 5) + 6(x + 2) = 9 p. 7(x – 9) – 5(6 – x) = – 6 + 11x
q. 10(x – 7) – 8(x + 5) = 6.(-5) + 24
Tìm số x biết:
a/ -5x = 10x + 5 .(-3)2
b/ -1/2 - ( x - 1/3 ) = -1/6
tìm x biết
a) 2/3 - 5/3x = 7/10x + 5/6
b) 2x-1/4=5/6-1/2x
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