Question

3) Resolva a equação: 2x + 31 - x - 1) = 10.​

Answer 1

$2x + 31 - x - 1 = 10 \\ 2x - x+ 30 = 10 \\ x + 30 = 10 \\ x = 10 - 30 \\ x = \pink{- 20}$