Question

There is 2 picture please answer i don't understand

Answer 1

- For question 1-

Given line a and line b are parallel lines, the angle represented with 15x and angle angle represented with 6x + 54 are alternate. Therefore, they are congruent, so we can write the following equation:

15x = 6x + 54

• Transfer like terms to the same side of the equation.

15x - 6x = 54

• Subtract like terms.

9x = 54

• Divide both sides by 54.

x = 6

So the measure of the angle represented with 15x is equal to 90°.

- For question 2-

The angle with a measure of 105° and the angle represented with 5y are alternate angles and congruent.

So,

5y = 105

• Divide both sides by 5 to isolate y.

y = 21