Question

Determine o conjunto solução das equações a seguir sabendo que U=Q
A) x - 3 = 5
B) x + 2 = 7
C) 0 = x + 12
D) 3x = 12
E) 20x - 4 = 5x
F) 4x = -8x + 36
G) 6x - 4 = 2x + 8
H) 17x - 2 + 4 = 10 + 5x
I) 4x – 10 = 2x + 2
J) 5x + 6x – 16 = 3x + 2x - 4
K) 5(2x -4) = 7(x + 1) - 3
L) 4(x + 3) = 1
me ajudemmmm

Answer 1

Resposta:

a) x= 5+3

S = {8}

b) x = 7-2

S = {5}

c) x = 0-12

S = {-12}

d)  x = 12/3

S = {4}

e) 20x-5x = 4

15x = 4

x = 4/15

S = {4/15}

f) 4x+8x = 36

12x = 36

x = 36/12

S = {3}

g) 6x-2x = 8+4

4x = 12

x = 12/4

S = {3}

h) 17x-5x = 10+2-4

12x = 8

x = 8/12 = 2/3

S = {2/3}

i) 4x-2x = 2+10

2x = 12

x = 12/2

S = {6}

j) 5x+6x-3x -2x = -4+16

6x = 12

x = 12/6

S = {2}

k) 10x-20 = 7x+7-3

10x-7x = 7-3+20

3x = 24

x = 24/3

S = {8}

l) 4x+12 = 1

4x = 1-12

x = 11/4

S = {11/4}