Question

Organize a equação e calcule o valor de "x" em cada item.
9x - 2 = 4x + 18
4x - 18 + 3x = 10
2x – 10 + 7x + 10 = 180
2x + 5 + x + 7 = 18

Answer 1

olá !!!

$9x - 2 = 4x + 18\\4x - 18 + 3x = 10\\2x – 10 + 7x + 10 = 180\\2x + 5 + x + 7 = 18\\\\9x - 2 = 4x + 18\\9x-4x=18+2\\5x=20\\x=20/5\\x=4\\\\4x - 18 + 3x = 10\\7x=10-3+18\\7x=25\\x=25/7\\x=3,57\\\\2x – 10 + 7x + 10 = 180\\9x=180+10\\9x=170\\x=170/9\\x=18,8\\\\2x + 5 + x + 7 = 18\\3x=18-7-5\\3x=6\\x=6/3\\x=2$

espero ter ajudado

Att: Jovem Lendário