Question

помогите (3x+2)+(x-1)=56 это 6 класс

Answer 1

3х+2+х-1=56
3х+х+2-1=56
4х+1=56
4х=55
х=55/4=10 3/4

Answer 2

3х+2+х-1=56
4х=56+1-2
4х=55
4х=55:4
х=13,75
3*13,75+2+13,75-1=56
41,25+2+13,75-1=56
56=56