2x + 3x - 5 = 1500
2x + 3x = 1500 + 5
5x = 1505
x = 1505 : 5
x = 301
x(2+3)-5=1500
x5-5=1500
x5 =1500+5
x5 =1495
x =1495:5
x =299
\(\text{2x + 3x - 5 = 1500}\)
\(2x+3x=1500+5\)
\(2x+3x=1505\)
\(5x=1505\)
\(x=1505:5\)
\(x=301\)
2x + 3x - 5 = 1500
2x + 3x = 1500 + 5
5x = 1505
x = 1505 : 5
x = 301
x(2+3)-5=1500
x5-5=1500
x5 =1500+5
x5 =1495
x =1495:5
x =299
\(\text{2x + 3x - 5 = 1500}\)
\(2x+3x=1500+5\)
\(2x+3x=1505\)
\(5x=1505\)
\(x=1505:5\)
\(x=301\)
Tìm x biết
1) 2x - 378 = 122
2) 8x - 4x = 1208
3) x - 382 = 159 : 3
4) 3x + 30 = 420
5) 12x - 13x - 500 = 1500
Tìm x:
1500 : [(30x + 40) : x] = 30
(2x - 15)5 = (2x - 15)3
32x + 2 = 9x + 3
rut gon
a,3x(2x-7)-3x(4x-5)
b,(-7x+8)(-2x+3)-7x(2x-4)
c,(2x-3)(3x2-2x+4)-(2x-3)(3x+4)
d,(-2+7)(3x-6)-(4x-5)(2x-6)
tìm \(x\)
a) \(1500:\left[\left(30x+40\right):x\right]=30\)
b)\(697:\frac{15x+364}{x}=17\)
c)\(3x=2x+10\)
d)\(4x=2x+100\)
e)\(\left(2x-1\right)+\left(4x-2\right)+\left(6x-3\right)+...+\left(400x-200\right)=5+10+15+...+1000\)
-3(2x-1)-5(3x+2)=14
-4(3x+5)+7(-2x-3)=-11
2(-3x+4)+3(x-5)=2(x+6)+1
-5(3x-1)-4(-2x+3)=0
-7(2x-1)+5(3x-4)=-3(x-5)
|x-3|=0
3|x+2|-5=16 cac ban lam nhanh nhe
tim x
-2x(6x-2)+3x(4x-7)=8
(7x-2)(2x+3)-(3x-5)(4x+6)=2x2-5
+(-2x+3)-6x(3x-4)=-22x2+7x
M.n ơi giúp mình giải những bài này nha
A) 25-3x = 13
B) 13+3.(130-3x)=313
C) (17-x) .125 =1500
tìm x thuộc z
1)(-3x+2)-(5-3x)=-3
2) 3+x-(3x-1)=6-2x
3) (x-5).(3x+4)=0
4) 7x.(2x-1)=0
5) (3x-1).2x=0
giúp mik với mai mik đi học rùi :((
a) x + 7 ⋮ x + 2
b) 2x + 5 ⋮ x + 1
c) 3x - 2 ⋮ x + 3
d) 12x + 1 ⋮ 3x + 2
e) x2 + 3x + 5 ⋮ x + 3
f) X2 - 2x + 3 ⋮ x + 2