Question

Упростите выражение:
а) 2x-(х+1) ; б) n+2(3n-1)

Answer 1

a) 2x-(x+1)= 2x-x-1= x-1
б) n+2(3n-1)= n+6n-2= 7n-2
∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵
:-)