Mình làm lun nhé

X x 5 -19 + X x 3 + 24 =125(PHá ngoặc)

X x(5+3) +24-19=125

X x 8 +5=125

X x 8 =125 -5

X x 8 =120

\(5x-19+3x+24=125\)

 \(5x+3x=125+19-24\)

    \(8x=120\)

      \(x=120:8\)

      \(x=15\)

(x * 5 - 19) + (x * 3 + 24) = 125

x * 5 - 19 + x * 3 + 24 = 125

x * (5 - 19) + 24 = 125

x * (-14) + 24 = 125

x * (-14) = 125 - 24

x * (-14)  = 149

x = 149/(-14)

=>5x-19+3x+24=125

=>8x+5=125

hay x=15

( 5 x − 19 ) + ( 3 x + 24 ) = 125

. 5 x − 19 + 3 x + 24 = 125

8 x + 5 = 125

8 x = 120

x = 15

\(\left(x+5-19\right)+\left(x+3+24\right)=125\)

\(x+5-19+x+3+24=125\)

\(2x+8+5=125\)

\(2x+13=125\)

\(2x=125-13\)

\(2x=112\)

\(x=112\div2\)

\(x=56\)

(x+5-19)+(x +3 +24)=125

x-(19-5) + x+27 =125

x-14 + x+27=125

x+x-14+27=125

x x2 +27-14=125

x x2 +13=125

x x2=125-13=112

x=112 :2=56

\(\left(x+5-19\right)+\left(x+3+24\right)=125\)

\(\Rightarrow x-14+x+27=125\)

\(\Rightarrow\left(x+x\right)+\left(27-14\right)=125\)

\(\Rightarrow2\times x+13=125\)

\(\Rightarrow2\times x=125-13\)

\(\Rightarrow2\times x=112\)

\(\Rightarrow x=112:2\)

\(\Rightarrow x=56\)

Vậy \(x=56\)

~ Ủng hộ nhé 

sai đè à 

Sai đề thiệt

X x 5 +X X 3 +24-19 =125

8 x X +5 =125

8 x X=120

X=15

5 x X +3 x X +24-19 =125

8 x X +5 =125

8 x X=120

X=15

15 là đúng đó .

( X * 5 - 19 ) + ( X * 3 +24 ) = 125

x*5 - 19 + x*3 + 24 = 125

x*5 + x*3 - 19 +24 =125

8*x -19 = 125-24

8*x -19 = 101

8*x = 101+19

8*x = 120

x = 120 : 8

x = 15

\(\left(5x-19\right)+\left(3x+24\right)=125\)

.\(5x-19+3x+24=125\)

\(8x+5=125\)

\(8x=120\)

\(x=15\)

ta có x *8 =125+19-24

        x*8=120

        x=120\8

       x=15