Question

1)Resolva as equações abaixo.
a)15x-5=8x+37
b)7x+9=3x+49
c)6x-11=13-2x
d)5x+7=52
e)9x=3x+30
f)8x-3+2x=3x+25
g15x+6=13x-8
h)8x-5=4x-21
i)6x+2=11x-18
j)8-2x=6x-64
me ajudem por favorrree​

Answer 1

Resposta:

a)15x-5=8x+37

15x-8x=37+5

7x=42

x= 42/7

x=6

b)7x+9=3x+49

7x-3x=49-9

4x=40

x=40/4

x=10

c) 6x-11=13-2x

6x+2x=13+11

8x=24

x=24/8

x=3

d)5x+7=52

5x=52-7

5x=45

x=45/5

x= 9

e)9x=3x+30

9x-3x=30

6x=30

x=30/6

x=5

f)8x-3+2x=3x+25

8x+2x-3x=25+3

7x=28

x=28/7

x=4

g)15x+6=13x-8

15x-13x=-8-6

2x= -14

x= -14/2

x= -7

h)8x-5=4x-21

8x-4x=-21+5

4x=16

x=16/4

x= 4

i)6x+2=11x-18

6x-11x= -18-2

-5x= -16 (-1)

5x=16

x=16/5

j)8-2x=6x-64

-2x-6x=-64-8

-8x= -72 (-1)

x= 72/8

x= 9