Question

2 ( z + 2 ) = 10 .............​

Answer 1

Answer:

Step-by-step explanation:

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20z - 2 = \frac{10z}{2}

⇒20z - \frac{10z}{2} = 2

⇒\frac{40z}{2} - \frac{10z}{2}=2

⇒\frac{30z}{2} = 2

⇒30z = 4

⇒z = 4/30

⇒ z = 2/15 or 0.133

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Answer 2

Answer:

3

Step-by-step explanation:

2 ($z$+2)=10

==2*$z$  +  2*2

==2$z$+4=10

2$z$=10-4

   =6

=2$z$=6

$z$=6/2

 =3

2(3+2)=10