Question

respostas,por favor me ajudem
A)7x + 3 = 8 + 4x
B)2x + 5 = 4x + 11
C)3(x – 1) – 2(x + 1) = – 9
D)5 + x = 7
E)3x + 5 = 8
F)2x – 4 = 6
G)– x – 10 = – 2
H)3x – 2 = 2x + 4
I)4 – 3x = x + 6
J)2x – 9 = 5x – 3
K)7x + 4 – 5x = 20
L)3x + 4 = 7 – 3 – 1
M)2x – 1 = 4 + x +5
N)2x + x – 5 = 19 + 5x
O)12x + x – 6 = 8x + 4
P)X + 9 – 9x = 3 – 5x
Q)7(x – 1)= 5 – 2x
R)10x – 1 = 4(x + 1)
S)3(x – 2) = 5x – 8
T)6x – 3(4 – 2x ) = 0
U)3(x + 1) = 4(x + 2)
V)5x – 9(2 – x) = 0
w)6(2 + x) = – 2( – 6 + 3x)
X(2(x – 1) – 9 = 6x
Y)2(x – 3) + 3(x – 1) = 36

Answer 1

Resposta:

Faz um tempo que aprendi isso mas creio que ainda sei

A) 7x-4x= 8-3

3x =5

x= 5:3

x= 1,66...

b) 2x+5 = 4x+11

2x-4x = 11-5

-2x = 6

x= 6:(-2)

x= -3

d) 5+x = 7

x= 7-5

x=2

e) 3x+5=8

3x=8-5

3x=3

x= 3:3

x=1

f)2x-4=6

2x=6+4

2x=10

x=10:2

x=5

h) 3x-2=2x+4

3x-2x= 4+2

1x=6

x=6

j) 2x-9=5x-3

2x-5x=-3+9

-3x=6

x= 6:(-3)

x= -2

k) 7x+4-5x=20

7x-5x=20-4

2x=16

x= 16:2

x= 8

E assim continua