Solving for a gives us: 
Step-by-step explanation:
Solving an equation for a variable means that we have to isolate the variable in the equation
Given equation is:

For isolating a, subtracting c from both sides

Subtracting b from both sides

Hence,
Solving for a gives us: 
Keywords: Equation, formula
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Answer: x=65
Step-by-step explanation:
Set (2x + 2) equal to (3x-63) because they are the same angle.
(2x+2)=(3x-63)
Subtract 2x from 3x which gives u 1x or just x
Now u have 2=x-63
Add 63 to both sides so now u have x =65
Lemme know if u need help
Using the equations y-3x=3 and x+y=31 you can find that x=7 and y=24. There for x is the smaller of the two numbers.

Explanation:
Since we have given that
Speed at which Eugene walked all the way to school = 3 mph
After realizing that she forgot her math book, she ran back
Speed at which Eugene walked back to her house = 7 mph
Let the distance between her house and her school be x
According to question,

Hence,
