iangiddens3 iangiddens3
  • 10-09-2020
  • Mathematics
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**LOOK AT PHOTO** Whats the answer and what are the steps?

LOOK AT PHOTO Whats the answer and what are the steps class=

Respuesta :

Estellia
Estellia Estellia
  • 10-09-2020

Answer:

[tex]a=2K-b[/tex]

Step-by-step explanation:

[tex]K=\frac{a+b}{2}[/tex]

Switch sides:

[tex]\frac{a+b}{2}=K[/tex]

Multiply both sides by 2:

[tex]\frac{2\left(a+b\right)}{2}=2K[/tex]

[tex]a+b=2K[/tex]

Subtract b from both sides:

[tex]a+b-b=2K-b[/tex]

[tex]a=2K-b[/tex]

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