Question

Como resolvo as equações :
a) x -1 = - 8
b) 3x = -15
c)×/2 = 4
d) b/8 = -2
e) 6x + 8 = 20
f) ×/2 - 3= 12
g) -4n -1 =3
h) -2x +6 =12
i) 8x +3 = 2x - 5
j)3y +4 =6 + 2y
k) 2x + 5 =27
l) 4x - 8 =2x +6
m)7x +1 =6x +6
n)txt -3 =2x -9

Answer 1

Resposta:

a) X= -8+1 = -7

b) X= -15/3 = -5

e) 6x = 20-8 = 12... X= 12/6 = 2

f) -4n-1=3 ×(-1) = 4n +1 =3... 4n= 3-1= 2 n= 2/4

k) 2x = 27-5 =22... X= 22/2 = 11

l) 4x - 2x = 6+8= 2x = 14... X=14/2= 7

m) 7x- 6x = 6 -1 = X = 5