Question

9x-3(2x+2)=15 da quanto?

Answer 1

9x-3(2x+2) = 15
18x - 6 = 15
18x = 15+6
18x = 21
x = 21/18
x = 1,66666...

Answer 2

9x - 3(2x + 2)= 15

9x - 6x - 6 = 15

3x - 6 = 15

3x = 15 + 6

3x= 21

x= 21/3

x= 7