Question

x nhân 6 cộng x cộng x cộng x = 135

Answer 1

Ta có:

x*6+x+x+x=135.

x*(6+1+1+1)=135.

x*9=135.

x=135:9.

x=15.

Vậy x=15.

Answer 2

x . 6 + x + x + x = 135 

x . (6 + 3x) = 135 

x . 9 = 135 

x = 135 : 9 

x = 15 

Answer 3

X.6+X+X+X=135

<=> 6X +3X=135

<=> 9X=135

<=> X=15

Answer 4

x.6+x+x+x=135

= x.6+3.x=135

=x.(6+3)=135

=x.9=135

     x=135:9

     x=15

Answer 5

X x 6 + X + X + X = 135

X x (6+1+1+1) = 135

9 x X = 135 

X = 15

Answer 6

X.6+X+X+X=135

<=>6X+3X=135

<=>9X=135

<=>X=15