Question

ecuaciones a)7x-9=54 b)x:15+32=35 c)(x+2):6=4 d)(x-12).4=16

Answer 1

Explicación paso a paso:

a)7x-9=54

7x=54+9

7x=63

x=9

b)x:15+32=35

  x:15=35-32

 x:15=3

  X=15x3=45

c)(x+2):6=4

6(x+2):6=4.6

x+2=6.4

x+2=24

x=24-2=22

d)(x-12)4-(16)=0

4x-48-16=0

4x-64=0

4x=64; x=64/4=16

Answer 2

Respuesta:

a)7x-9=54   ⇒9

b) x÷15+32=35   ⇒1645

c)(x+2)÷6=4    ⇒22

d)(x-12)×4=16   ⇒16

Explicación paso a paso:

a)7 x - 9 = 54

7x = 54 + 9

7x = 63

x = 9

b) x ÷ 15 + 32 = 35

$\frac{x}{15+32}=35$

$\frac{x}{47} =35$

x = 47×35

x = 1645

c) ( x + 2 ) ÷ 6 = 4

$\frac{x+2}{6} =4$

x + 2 = 24

x = 24 - 2

x = 22

d)( x - 12 ) × 4 = 16

4x - 48 = 16

4x = 16 + 48

4x = 64

x = 16