Question

descubra o valor de x na PA(x+3,2+2,4+8)

Answer 1

Pá(x+3,4,12)
4-(3+x)=8(razão dada por 12-4)
4-3-x=8
1-x=8
-x=8-1
-x=7
X= -7

(-7+3,4, 12)
(-5,4,12)