Question

2x + 1 = - 7 qual o calculo ??

Answer 1

2x+1=-7
2x=-1-7
2x=-8
x=-8/2
x=-4

Answer 2

2x + 1 = -7
2x = -7-1
2x = -8
x = -8/2
x = - 4

espero ter ajudado !