Question

Please help me with this 2 problems

Answer 1

The first one is x = 4
The second is x = 3

Answer 2

[9] Answer: x = 4

Explanation:

Both of these problems use triangle's exterior angles. We will set up an equation and solve. The two opposite angles are equal to opposite exterior angle. After writing our equation, we will solve and isolate the variable using inverse operations.

17x + 1 + 18x + 3 = 144

35x + 4 = 144

35x = 140

x = 4

[10] Answer: x = 3

Explanation:

Both of these problems use triangle's exterior angles. We will set up an equation and solve. The two opposite angles are equal to opposite exterior angle. After writing our equation, we will solve and isolate the variable using inverse operations.

20x + 23x + 1 = 130

43x + 1 = 130

43x = 129

x = 3