Question

Determine a soluçao das equaçoes


a) X/2 + 1 = 5

b) n/3 + 1/2 = 3n/4

c)a + 3a/2 - 1 = a/4 - 3

d)2t/3 - 1 = t + 1/2

*PS: A BARRA QUER DIZER FRAÇAO OK*


RESPONDAM COM CALCULOS OBG

Answer 1

Pronto, ta aí a resposta

Answer 2

A) X/2=5-1
X/2=4
X=4×2
X=8

B) 1/2= 3N/4-N/3
1/2= 9N/12-4N/12
1/2=5N/12
5×2N=12×1
10N=12
N= 12/10
N= 1,2

C) a+3a/2-a/4=-3+1
5a/2-a/4=-2
9a/4=-2
9a=-2×4
a= -8/9

D) 2t/3-3t/3 = 1/2+ 2/2
-t/2 = 3/2
-2t=6
t= -3