Question

resolva as equações calculando o valor do x:
a)x + 1 = 6
b)x - 1 = 7
c)x - 3 = 2
d)x + 4 = 2
e)x -6 = -1
f)2 x = 8
g)3 x = 6
h)-4 x = -12
i)3 x = -9
j)2 x = -4
n)x/5 = -2
o) x/4 = 1
p)3x/4= 9
q)2x/5 = -8
r) 2 x -4 = 4
s) 3 x - 3 = 6

AJUDEM pfv

Answer 1

a)5
b)8
c)5
d)-2
e)5
f)2 x 4=8
g)2
h)3
i)-3
j)-2

Answer 2

Oie, vamos lá:

Respostas:

a)x + 1 = 6

x= 6 -1

x= 5

b)x - 1 = 7

x = 7 + 1

x= 8

c)x - 3 = 2

x= 2 + 3

x= 5

d)x + 4 = 2

x= 2 - 4

x= -2

e)x - 6 = -1

x= -1 + 6

x= 5

f)2x = 8

x= $\frac{8}{2}$

x= 4

g)3x = 6

x= $\frac{6}{3}$

x= 2

h)-4x = -12

-4x = -12 .(-1)

4x = 12

x= $\frac{12}{4}$

x= 3

i)3x = -9

x= $\frac{-9}{3}$

x= -3

j)2x = -4

x = $\frac{-4}{2}$

x = -2

n)$\frac{x}{5}$ = -2

x= -2 . 5

x= -10

o)$\frac{x}{4}$ = 1

x= 4

p)$\frac{3x}{4}$ = 9

3x= 9 . 4

3x= 36

x= $\frac{36}{3}$

x= 12

q)$\frac{2x}{5}$ = -8

2x= -8 . 5

2x= -40

x= $\frac{-40}{2}$

x= -20

r) 2x - 4 = 4

2x= 4 + 4

2x= 8

x= $\frac{8}{2}$

x= 4

s) 3x - 3 = 6

3x= 6 + 3

3x= 9

x= $\frac{9}{3}$

x= 3

Espero ter ajudado :D