Question

o valor de x na equaçao |2x+1| = 6 é:
a) S={-7/2,5/2}
b)S={5,5}
c)S={0,0}
d)S={2,7}
e)S={-5,8}

AJUDA AIIIIIIIIIIIIIIIII PESSOAL POR FAVOR

Answer 1

Boa noite Daniel

l 2x + 1 l = 6

2x  + 1 = 6
2x = 5

x = 5/2

2x + 1 = -6
2x = -7

x = -7/2

S = (7/2, 5/2) (A)