Question

15x (x+x+x)=90

Answer 1

15x(x+x+x)=90

15x²+15x²+15x²=90

45x²=90

x²=2

Answer 2

15x(x+x+x)=90

15x.3x=90

45x=90

x=90:45

x=2 

Vậy x=2

Answer 3

15x (x+x+x)=90

        15x x 3x = 90

         45x = 90

            x = 90 : 45

            x = 2

k nha

Answer 4

15x (x+x+x)=90

15x.3x=90

45x=90

x=90:45

x=2

Answer 5

15x(x+x+x)=90

15x.3x=90

45x=90

x=90:45

x=2

Answer 6

15 x ( x+ x + x ) = 90

15 x 3.x=90

45x=90

x = 90 : 45 = 2

x = 2