Question

resolver las siguientes ecuaciones

a ) 2 ( × - 4 ) = × + 7

b ) 7 ( × - 1 ) = 3 × + 1

c ) ( × + 2 ) . 6 = 2 ( 10 + × )

d ) ( 35× - 50 ) : 5 = 2 × + 15

Answer 1

Explicación paso a paso:

a) 2(x - 4) = x + 7

2x - 8 = x + 7

2x - x = 7 + 8

x = 15

b) 7(x - 1) = 3x + 1

7x - 7 = 3x + 1

7x - 3x = 1 + 7

4x = 8

x = 8/4

x = 2

c) (x + 2)6 = 2 (10 + x)

6x + 12 = 20 + 2x

6x - 2x = 20 - 12

4x = 8

x = 8/4

x = 2

d) (35× - 50) : 5 = 2x + 15

7x - 10 = 2x + 15

7x - 2x = 15 + 10

5x = 25

x = 25/5

x = 5