4 - ( 1/2x + 3/4 ) = -15
=> 1/2x + 3/4 = 4 - ( -15 )
=> 1/2x + 3/4 = 19
=> 1/2x = 19 - 3/4
=> 1/2x = 73/4
=> x = 73/4 : 1/2
=> x = 73/2
Vậy x = 73/2
giải giúp 4-(1^2x+3^4)=-15
1)Tìm GTNN của biểu thức :
\(A=\left(2x+\frac{1}{3}\right)^4-10\)
B=/2x-2/3/+(y+1/4)^4-1
b) Tìm GTLN của biểu thức sau:
\(C=-\left(\frac{3}{7}x-\frac{4}{15}\right)^6+3\)
D=-/x-3/-/2y+1/+15
1, 1/6 (2x - 3) = -1/2 (x-1/4) - 2/3
2, 17/-8 : 3/4 + 2 . | 3/2x - 1 | = -1/2
3, | x^2 + 1/2 | - 15 1/2 = -12 3/4
Lam giup mik nha (nhanh)
tim x
a) / x+\(\frac{4}{15}\)/ - / -3,75 / = - / -2,15 /
b) / 4 + 2x / = - 4x
c) / x - 2 / - / 2x + 3 / = x - 1
d) / x - 2 / + / x - 3 / + / x - 4 / = 2
e) / 2x - 1 / + / 2x - 5 / = 4
Tìm x biết :
a, 4.(18 - 5x) - 12.(3x - 7) = 15.(2x - 16) - 6(x + 14)
b, 5.(3x + 5) - 4.(2x - 3) = 5x + 3.(2x + 12) + 1
c, 2.(5x - 8) - 3.(4x - 5) = 4.(3x - 4) + 11
d, (3x + 2)(2x + 9) - (x + 2)(6x + 1) = (x + 1) - (x - 6)
e, (8x - 3)(3x + 2) - (4x + 7)(x + 4)= (2x + 1)(5x - 1) - 33
1) 4(2x+4)-2(3x-30=4x=84
2) 4(2x+1)-2(x-1)=36-x
3) \(\frac{2x=3}{3x+1}\)= \(\frac{3}{4}\)
4) \(\frac{2x+4}{7}\)= \(\frac{4x-2}{15}\)
Giải zùm mk nhá
A) 5/4+x=2/3
B) -x-2=5/4
C)4x+1/3=3/2
Đ) 1/3-2/5+3x=3/4
E) 3x+7+2x=4x-3
G) 3x(2x-3)-2x(3x-4)=15
H) x^2-x=0
tìm max min
a) ( 2x + 1/3)^4 - 1
b) - (4/9x - 2/15) ^6 +3
1, Tìm x ∈ Z biết
a, \(\dfrac{x-4}{15}\)=\(\dfrac{5}{3}\)
b, \(\dfrac{x}{4}\)=\(\dfrac{18}{x+1}\)
c,2x+3 ⋮ x+4
\sqrt{1} \(\dfrac{help}{me}\)
