Penjelasan dengan langkah-langkah:
2x + 10 + 5x - 15 + 80 = 180
7x + 75 = 180
7x = 180 - 75
7x = 105
x = 105/7
x = 15
besar sudut ABC
= 2x + 10
= 2.15 + 10
= 30 + 10
= 40
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Penjelasan dengan langkah-langkah:
2x + 10 + 5x - 15 + 80 = 180
7x + 75 = 180
7x = 180 - 75
7x = 105
x = 105/7
x = 15
besar sudut ABC
= 2x + 10
= 2.15 + 10
= 30 + 10
= 40