Verified Answer :

luana

\(14.\\4(2a+2)-17=15\\\\8a+8-17=15\\\\8a=15-8+17\\\\8a=24\ |:8\\\\a=\frac{24}{8}=3\\\\16.\\-4x+3(2x-5)=31\\\\-4x+6x-15=31\\\\2x=31+15\\\\ 2x=46\ |:2\\\\x=23\\\\17.\\-6-3(2k+4)=18\\\\-6-6k-12=18\\\\-6k=18+12+6\\\\-6k=36\ |:-6\\\\x=-6\\\\22.\\2x+\frac{3}{4}(4x+16)=7\\\\2x+\frac{12x}{4}+\frac{48}{4})=7\\\\2x+3x+12=7\\\\5x=7-12\\\\5x=-5\ |:5\\\\x=-1\)
  1. 4(2a+2)-17= 15
    42a+42-17=15
    8a+8=15+17
    8a+15+17-8
    8a=24
    a=3

    16. -4x+3(2x-5)= 31
    -4x+32x-35=31
    -4x+6x-15=31
    2x=31+15
    2x=46
    x=23

    17. -6-3(2k+4)= 18
    -6-32k-34=18
    -6-6k-12=18
    -18-6k=18
    -6k=32
    k=-32/6=-16/3

    22. 2x+ 3/4(4x+16)=7
    2x+(3/4)4x++(3/4)16=7
    2x+3x+12=7
    5x=-5
    x=-1

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