Question

1) 10x-9x=40 2)x+2 =1

Answer 1

$1. \: \: \: 10x - 9x = 40 \\ (10 - 9)x = 40 \\ 1x = 40 \\ x = 4 \\ 2. \: \: \: \: x + 2 = 1 \\ x = 1 - 2 \\ x = - 1$

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