Question

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

Answer 1

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

Answer 2

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

 \(5x+3x=125+19-24\)

    \(8x=120\)

      \(x=120:8\)

      \(x=15\)

Answer 3

(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)