108k views
2 votes
5a=a+40

Solve for a

3b=10b-49

Solve for b

User Yonosoytu
by
7.2k points

1 Answer

5 votes

Answer:

The first answer is a = 10, The second answer is b = 7

Explanation:

Equation 1: 5a = a + 40

To solve for a, you want to isolate a on one side of the equation. You can do this by subtracting "a" from both sides of the equation:

5a - a = a - a + 40

This simplifies to:

4a = 40

Now, divide both sides by 4 to solve for a:

4a/4 = 40/4

a = 10

So, a = 10.

Equation 2: 3b = 10b - 49

To solve for b, you want to isolate b on one side of the equation. First, let's get the "b" terms on one side by subtracting 10b from both sides:

3b - 10b = 10b - 10b - 49

This simplifies to:

-7b = -49

Now, divide both sides by -7 to solve for b:

(-7b) / (-7) = (-49) / (-7)

b = 7

So, b = 7.

User Subrata
by
7.2k points