Question

решите уравнение 7(x-2)-5(6x+3)=-1-9x

Answer 1

7(x-2)-5(6x+3)=-1-9x
7x-14-30x-15=-1-9x
7x-30x+9x=-1+15+14
-14x=28
x=28÷(-14)
x=-2

Answer 2

7(х-2)-5(6х+3)=-1-9х
7х-14-30х-15+1+9х=0
-14х-18=0
-14х=28
х=-2