Question

a) 3x + 9 = 4x + 5
b) 4x + 9 = 17 + 2x
c) 5x + 15 = 2x – 6
d) 7x – 5 = 3x + 11
e) 9x – 4 = 8x + 3
f) 4x + 2 = 2x + 8
g) 8x + 7 = 5x – 2
h) 6x + 3 = 4x + 5
i) 5x – 3 = 3x + 5
j) 3x + 4 = 4x + 2
k) X + 3 = 5x + 11
l) 8 – 5x = 8 + 2x
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Answer 1

Respuesta:

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Answer 2

Respuesta:

a) 3x + 9 = 4x + 5

3x – 4x = 5 – 9

-x = -4

x = 4

b) 4x + 9 = 17 + 2x

4x – 2x = 17 – 9

2x = 8

2x = 8/2

x = 4

c) 5x + 15 = 2x – 6

5x – 2x = -6 – 15

3x = -21

x = -7

d) 7x – 5 = 3x + 11

7x – 3x = 11 + 5

4x = 16

x = 4

e) 9x – 4 = 8x + 3

9x – 8x = 3 + 4

x = 7

f) 4x + 2 = 2x + 8

4x – 2x = 8 – 2

2x = 6

x = 3

g) 8x + 7 = 5x – 2

8x – 5x = -2 – 7

3x = -9

x = -3

h) 6x + 3 = 4x + 5

6x – 4x = 5 – 3

2x = 2

x = 1

i) 5x – 3 = 3x + 5

5x – 3x = 5 + 3

2x = 8

x = 4

j) 3x + 4 = 4x + 2

3x – 4x = 2 – 4

-x = -2

x = 2

k) X + 3 = 5x + 11

x – 5x = 11 – 3

-4x = 8

x = -2

l) 8 – 5x = 8 + 2x

8 – 8 = 2x + 5x

0 = 7x

0/7= x

Espero que te sirva.