5
Объяснение:
5х + 1 - (2х - 3) + 3(х-1) =
5x + 1 - 2x + 3 + 3x - 3 = 6x + 1
6x + 1 = 6 * + 1 = 5 + 1 =6
5•5+1-(2•5-3)+3(5-1)=25+1-(10-3)+3•4=26-7+12=19+12=31
5•6+1-(2•6-3)+3(6-1)=30+1-(12-3)+3•5=31-9+15=22+15=37
5
Объяснение:
5х + 1 - (2х - 3) + 3(х-1) =
5x + 1 - 2x + 3 + 3x - 3 = 6x + 1
6x + 1 = 6 * + 1 = 5 + 1 =6
5•5+1-(2•5-3)+3(5-1)=25+1-(10-3)+3•4=26-7+12=19+12=31
5•6+1-(2•6-3)+3(6-1)=30+1-(12-3)+3•5=31-9+15=22+15=37