Solve for X I need answers for it because I forgot how to do it

25°

Step-by-step explanation:

Step 1:

3x + x + 20° + 60° = 180°        Sum of a Δ

Step 2:

4x + 80° = 180°       Combine Like Terms

Step 3:

4x = 100°         Subtract 80° on both sides

Step 4:

x = 100° ÷ 4         Divide

x = 25°

Hope This Helps :)

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation:

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363