2(х+1)+1/2(х+1)=7/4х
помогите

2(x+1)+1/2(x+1)=7/4x
2x+2+1/2x+1/2=7/4x
2x+9/4x=-2-1/2
2x+2.25x=-2.5
4.25x=-2.5
x=-2.5/4.25
x=-25/10*100/425
x=-10/17