Answer:
17. z=18
18. n=-15
19. j = -50
20. a=-27
21. h=-15
22. d=.392
Step-by-step explanation:
17. Multiply both sides by 3, then subtract 6 from both sides
[tex]\frac{z+6}{3}=8\\\\\frac{z+6}{3} * 3 = 8\\\\z+6=8*3\\z+6=24\\[/tex]
[tex]z+6-6=24-6\\\\z=18[/tex]
18. Multiply both sides of the equation by 2, then add 7
[tex]\frac{n-7}{2}=-11\\\\ n-7 = -22\\\\n=-15[/tex]
19. Multiply both sides by -4, then subtract 18 from both sides.
[tex]\frac{j+18}{-4}=8\\ j+18 = -32\\j = -50[/tex]
20. Add six to both sides, then multiply both sides by 3
[tex]\frac{1}{3} a-6=-15\\\\\frac{1}{3}a=-9\\\\a=-27[/tex]
21. Subtract 4 from both sides, then multiply both sides by 4
[tex]\frac{1}{4}=\frac{1}{4}h+4\\\\-\frac{15}{4}=\frac{1}{4}h\\\\\\-15 = h[/tex]
22. Subtract 6.42 from both sides, then divide both sides by -10
[tex]6.42-10d=2.5\\\\-10d=-3.92\\\\d =\frac{-3.92}{-10} \\\\d=.392[/tex]
