Question

calcule e monte a conta :
a) y+9=3
b)x-12=15
c)3x=-12
d)3x=10
e)y+5=-4
f)5x=90

Answer 1

a) y+9=3

Y= 3-9

Y= -6

b)x-12=15

x=15+12

x=27

c) y+5= -4

y= -4-5

y= 9

d)3x= -2

x=12/3

x= 4

e)3x=10

x=10/3

x= 3

f)5×=90

x=90/5

x=18

espero ter ajudado :)

Answer 2

• Isole a incógnita.

a)

y + 9 = 3

y = 3 - 9

y = - 6

b)

x - 12 = 15

x = 15 + 12

x = 27

c)

3x = - 12

x = - 12/3

x = - 4

d)

3x = 10

x = 10/3

e)

y + 5 = - 4

y = - 4 - 5

y = - 9

f)

5x = 90

x = 90/5

x = 18

Resposta:

a) y = - 6

b) x = 27

c) x = - 4

d) x = 10/3

e) y = - 9

f) x = 18