Question

Tìm số tự nhiên x biết

a) ( x - 34 ) nhân 15 = 0

b) 18 nhân ( x - 16 ) = 18

Answer 1

(x-34). 15=0

x-34=0:15=0

x=34

18(x-16)=18

x-16=18:18=1

x=1+16=17

Answer 2

\(a,\left(x-34\right)\times15=0\) 

\(x-34=0:15\)

\(x-34=0\)

\(x=0+34\)

\(x=34.\)

\(b,18\times\left(x-16\right)=18\)

\(x-16=18:18\)

\(x-16=1\)

\(x=16+1\)

\(x=17.\)

Answer 3

a) (x - 34) × 15 = 0

x - 34 = 0 : 15

x - 34 = 0

x = 0 + 34

x = 34

Vậy x = 34

b) 18 × (x - 16) = 18

x - 16 = 18 : 18

x - 16 = 1

x = 1 + 16

x = 17

Vậy x = 17