Question

resolva as equações. 3 ( 9 × - 4 ) - 31 = 146 resolva .

Answer 1

3 . (9x - 4) - 31 = 146

27x - 12 - 31 = 146
27x - 43 = 146
27x = 146 + 43
27x = 189
x = 189 / 27
x = 7

Answer 2

3(9x-4)-31=146
27x-12-31=146
27x-43=146
27x=146+43
27x= 189
x = 189/27
x= 7