Answer:
see the explanation and the attached figure
Step-by-step explanation:
we have
----> given
Divide by -2 both sides
----> by Division Property of Equality
Simplifying

Subtract 1 both sides
----> by Subtraction Property of Equality
Simplifying

I would say the best estimate would be either 2 or 6.
Answer:
idk
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Step-by-step explanation:I HATEB NIGERS!!!!!!!!!!!!!!!!!!!!!!
Answer:

Step-by-step explanation:

Move 2a to left hand side and change it's sign
Similarly, move 10 to right hand side and change it's sign
⇒
Collect like terms
⇒
Subtract 10 from 26
⇒
Divide both sides of the equation by 2
⇒
Calculate
⇒
Hope I helped!
Best regards!!