Question

a)9(2x-4)=6(x+2)

b)3(x+1)=2(x+6)

c)5(x+2)=2(2x+2)

d)10(x+2)=6(x+4)

e)7(x+5)=9(x+3)
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Answer 1

Respuesta:

A) 9 ( 2X - 4 ) = 6 ( X + 2 )

18X - 36 = 6X + 12

18X - 6X = 12 + 36

12X = 48

X = 4

B) 3 ( X + 1 ) = 2 ( X + 6 )

3X + 3 = 2X + 12

3X - 2X = 12 - 3

X = 9

C) 5 ( X + 2 ) = 2 ( 2X + 2 )

5X + 10 = 4X + 4

5X - 4X = 4 - 10

X = - 6

D) 10 ( X + 2 ) = 6 ( X + 4 )

10X + 20 = 6X + 24

10X - 6X = 24 - 20

4X = 4

X = 1

E) 7 ( X + 5 ) = 9 ( X + 3 )

7X + 35 = 9X + 27

7X - 9X = 27 - 35

- 2X = - 8

X = 4