Question

1) no caderno, determine o valor de x em cada questão . a)x + 5 = 11 b)x + 10 = 7 c)x + 6 = -5 d)x - 8 = -10 e)6x = 42 f) - 3x = 24 g)x/3 = -12 h)x/4 = 20 i)5 x - 4 = 21 j)-6 x + 9 =-51 k)x/2 + 5 = 11 l)x/3 - 7 = -4 m)x - 13 = 34 n)3 x = 123 o)2 + 45 = 121 p)x/5 = 16 q)4 x + 6 = 6x + 10

Answer 1

a)X+5=11 X=11-5 X=6

b)X+10=7 X= 7-10 = -3

c)×+6=-5 ×=-5-6 = -11

d)×-8=-10 ×=-10+8= -2

e)6×=42, ×=42÷6= 7

f) 3×=24, ×=24÷3=8

g) ×/3=-12 ×=-12.3=-36

h) ×/4=20 ×=20.4= 80

i)5×-4=21 5×=21+5 5×=25, ×=25÷5=5

j)-6×=9, x=9÷-6 = -1,5

k)×/2+5=11, ×/2=11-5, ×/2= 6, ×=6.2 =12

l)×/3-7=-4, ×/3=-4+7, ×/3=3, ×=3.3 =9

m)×-13=34, ×=34+13 = 47

n)3×=123, ×=123÷3= 41

o)2×+45=121, 2×=121-45, 2×= 76,×=76÷2 = 38

p)×/5=16, ×=16.5 = 80

q)4x+6= 6x+10, 4x-6x= 10-6, -2x= 4, x=4÷-2 = -2

Answer 2

A) X+5=11

X=11-5

X=6

b)x + 10 = 7

X=7-10

X= -3

c)x + 6 = -5

X=-5-6

X=-11

d)x - 8 = -10

X=-10+8

X=-2

e)6x = 42

X=42÷6

X=7

f)-3x = 24

X=24÷3

X=8

g)x3= -12

x=-12÷3

x=-4

h)5x - 4 = 21

5x=21-4

5x=25

x=25÷5

x=5

espero ter ajudado <3