Question

Решите уравнение 5(x + 6) + 1 = 3 – 2 x. 

Answer 1

5(x + 6) + 1 = 3 – 2 x
5x+30+1=3-2x
5x+31=3-2x
5x+2x=3-31
7x= -28
x= -28:7
x=-4