a)2(2-x)+3(2x+4)=7
б)6x-4/5 - 2-x/4 = 3x+1/2

A)2(2-x)+3(2x+4)=7 4-2x+6x+12=716+4х=74х=7-164х=-9х=-9/4х=-2 1/4х=-2,25б)6x-4/5 - 2-x/4 = 3x+1/2 б)6x-x/4-3x=1/2+4/5+2 2 3/4х=0,5+0,8+22 3/4=3,3х=3,3:11/4х=1,2

4-4x+6x+12=710x=-9:10x=-0,9