Question

A) 12 - 7 + 4x = 25 ?

B) 5x - 3x = 30 ?

C ) 4x + 10 = 45 - 3x?

D ) 7x - 29 = 13 ?

E ) 10 ( 2x - 5 ) = 12x + 14?

F ) 3x+12= - 16 ?

G ) -21x + 45 = - 3x + 27 ?

H ) -5x = -9x + 25 ?

I ) 7x + 1 = 5x -7 ?

J ) 4x + 5 = x + 20?

K ) 2 (x - 3) + 8x +4 = 5 (x + 2 ) ?

L ) 3 (3x +8) -5x = x - 3 ?

poderiam me ajudar pfv ??



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Answer 1

Resposta:

a) 12-7+4x=2= 4x=20

x=20= 5

4

B)5x - 3x = 30= 2x=30

x=30

2

=15

C)4x + 10 = 45 - 3x=7x= 35

x=35

7

=5

D)7x - 29 = 13=7x=42

x=42= 6

7

E)10 ( 2x - 5 ) = 12x + 14=8x=64

x=64=8

8

F)3x+12= - 16=3x= -28

x= -28= -9

3

G)-21x + 45 = - 3x + 27= -18x= -18

x=-18= 1

-18

H)-5x = -9x + 25 = 4x=25

x=25=6

4

I) 7x + 1 = 5x -7=2x= -8

x= -8= 4

2

J)4x + 5 = x + 20=3x=15

x=15=5

3

K)2 (x - 3) + 8x +4 = 5 (x + 2 )=5(x+2) =5x=12=

x=12=2

5

L)3 (3x +8) -5x = x - 3=3x= -27

x= -27= -9

3