Решите уравнение: а) 2х+х-8=9, б) 6+(2х+1)=10.

а) 2x + x - 8 = 92x + x = 9 + 83x = 17x= 17÷3 x = 17/3 = 5 2/3b) 6 + (2x + 1) = 106 + 2x + 1 = 107 + 2x = 102x = 10-72x = 3x = 3:2x = 1,5