Mn ơi giúp mk vs

2³ . x + 2002⁰ . x = 995 - 15 :3

8 . x + 1 . x = 995 - 5

x . ( 8 + 1 ) = 990

x . 9 = 990

x = 990 : 9

x = 110

tích cho mik nha

\(2^3.x+2002^0.3=995-15\)

\(\Rightarrow8x+3=980\)

\(\Rightarrow8x=980-3=977\)

\(\Rightarrow x=977:8=\frac{977}{8}\)

**** đúng nka

2³ . x + 2016⁰ . x = 995 - 15 : 3

=> 8 . x + 1 . x = 995 - 5

=> x . (8 + 1) = 990

=> x . 9 = 990

=> x = 990 : 9

=> x = 110

Vậy x = 110.

a/ \(\left(x-23\right):14+25=42-1^{2002}\)

\(\Leftrightarrow\left(x-23\right):14+25=42-1\)

\(\Leftrightarrow\left(x-23\right):14+25=41\)

\(\Leftrightarrow\left(x-23\right):14=16\)

\(\Leftrightarrow x-23=192\)

\(\Leftrightarrow x=215\)

Vậy ....

b/ \(2^3.x+2002^0.x=995-15:3\)

\(\Leftrightarrow8.x+1.x=995-5\)

\(\Leftrightarrow x\left(8+1\right)=990\)

\(\Leftrightarrow9x=990\)

\(\Leftrightarrow x=110\)

Vậy ...

b/ \(x+2x+3x+.........+9x=459-3^2\)

\(\Leftrightarrow x\left(1+2+......+9\right)=459-9\)

\(\Leftrightarrow x.\dfrac{\left(9+1\right).\left[\left(9-1\right):1+1\right]}{2}=450\)

\(\Leftrightarrow x.45=450\)

\(\Leftrightarrow x=10\)

Vậy ...

Lời giải:
$8\times x+x=995-15:3$

$x\times (8+1)=995-5$

$x\times 9=990$

$x=990:9=110$