Question

найдите корень уравнения 8+7(х+2)=1

Answer 1

8+7(х+2)=1
8+7х+14=1
7х+22=1
7х=1-22
7х=-21
х= -21 : 7
х= -3

Answer 2

8+7(x+2)=1 8+7x+14=1 7x=-21 x=-3