Question

ALGUÉM PODE ME AJUDAR? a) 4x – 1 = 3 ( x – 1) -2 b) 3( x – 2) = 2x – 4 c) 2( x – 1) = 3x + 4 d) 3(x – 1) – 7 = 15 e) 7 ( x – 4) = 2x – 3 f) 3 ( x –2) = 4(3 – x) g) 3 ( 3x – 1) = 2 ( 3x + 2) h) 7 ( x – 2 ) = 5 ( x + 3 ) i) 3 (2x – 1) = -2 ( x + 3) j) 5x – 3( x +2) = 15 k) 2x + 3x + 9 = 8(6 –x) l) 4(x + 10) -2(x – 5) = 0 m) 3 (2x + 3 ) – 4 (x - 1) = 3 n) 7 (x – 1) – 2 ( x- 5) = x – 5 o) 2 (3 – x ) = 3 ( x - 4) + 15 p) 3 ( 5 – x ) – 3 ( 1 – 2x) = 42 q) ( 4x + 6) – 2x = (x – 6) + 10 +14 r) ( x – 3) – ( x + 2) + 2( x – 1) – 5 = 0 s) 3x -2 ( 4x – 3 ) = 2 – 3( x – 1) t) 3( x - 1) – ( x – 3) + 5 ( x – 2) = 18 u) 5( x – 3 ) – 4 ( x + 2 ) = 2 + 3( 1 – 2x)

Answer 1

Resposta:

a) x=1

b) x=2

c)x=6

d)x=5/3

e)x=5

f)18/7

g)7/3

h)14,5

i)-3/4

Explicação passo-a-passo:

a)4x= 1+3

4x=4

x=4/4=1

b) 3(x-2)=2x-4=

3x -6=2x-4=

3x - 2x = 6-4=

x=2

c)2x -2= 3x +4

-2 -4= -2x +3x

+6=x

d)3x-3-7=15

3x-10=15

3x=10-15

3x=5

x=5/3

e)7x -28=2x-3

7x-2x=28-3

5x=25

x=25/5

x=5

f)3x-6=-4x +12  

3x+4x=6+12

7x=18

x=18/7

g) 9x -3=6x+4

9x-6x=3+4

3x=7

x=7/3

h) 7x-14=5x+15

7x-5x=14+15

2x=29

x=29/2

x=14,5

i)6x-3=-2x-6

6x-2x=3-6

4x=-3

x=-3/4