Question

решите уравнения 6x-(9x+7)=11

Answer 1

6x-9x-7=11
-3x=7+11
-3x=18
x=-6

Answer 2

6х-(9х+7)=11
6х-9х-7=11
6х-9х=11+7
-3х=18
х=18:(-3)
х=-6