100 Things For Toddler Coloring Book: Easy and Big Coloring Books for Toddlers: Kids Ages 2-

100 Things For Toddler Coloring Book: Easy and Big Coloring Books for Toddlers: Kids Ages 2-

Matematika Tolong saya dong kak/bang...​

Tolong saya dong kak/bang...​

Jawaban:

55°

Penjelasan dengan langkah-langkah:

4x - 5 + 3x - 10 = 90

4x + 3x - 5 - 10 = 90

7x - 15 = 90

7x = 105

x = 105/7 = 15

4x - 5

4(15) - 5

60 - 5 = 55°

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