Question

usando os principais aditivo e multiplicativo,resolva as equa
ções a seguir.

A)x + 3,2=13

B)4x=42

C)x - 5=-10,25

D)-14x=2

E)x+1.3=5

F)6x=45

G) 5x-7=2x+10

H)5x+4,3=x+3,1​

Answer 1

a) x=9.8

b) x=21/2

c) x=-5.25

d) x=-1/7

e) x=3.7

f) x=15/2

g) x=17/3

h) x=-0.3

Answer 2

Resposta:

A)x + 3,2=13

x=13,0-3,2

x=9,8

B)4x=42

x=42/4

x=21/2

x=10,5

C)x - 5=-10,25

x=10,25+5,00

x=5,25

D)-14x=2

x=2/-14

x=-1/7

E)x+1.3=5

x=5,0-1,3

x=3,7

F)6x=45

x=45/6

x=7,5

G) 5x-7=2x+10

5x-2x=10+7

3x=17

x=17/3

x=5,66666...

H)5x+4,3=x+3,1

5x-x=3,1-4,3

4x=1,2

4x=12/10

x=12/10÷4

x=12/10×1/4

x=12/40

x=0,3

espero que isso ajude vc