How do you solve this whole thing ?

Step-by-step explanation:

Let's look at the first two, and hopefully you'll be able to figure the rest out:

1. Answer below

The problem asks us to solve for , so that means we need to get on one side of the equation by itself. To do so, we will need to divide both sides of the equation by :

2. Answer below

The problem asks us to solve for , so that means we need to get on one side of the equation by itself. To do so, we will need to add to both sides of equation:

x = 1

Step-by-step explanation:

Because ∠A and ∠B are vertical angles, they are equal hence we can write

∠A = ∠B

50x + 10 = 70x - 10

Now, you have to solve for x

subtract 50 on both sides

10 = 20x - 10

add 10 to both sides

20x = 20

divide 20 on both sides

x = 1