Question

Pls help me with my math hw

Answer 1

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

$\frac{z+6}{3}=8\\\\\frac{z+6}{3} * 3 = 8\\\\z+6=8*3\\z+6=24$

$z+6-6=24-6\\\\z=18$

18. Multiply both sides of the equation by 2, then add 7

$\frac{n-7}{2}=-11\\\\ n-7 = -22\\\\n=-15$

19. Multiply both sides by -4, then subtract 18 from both sides.

$\frac{j+18}{-4}=8\\ j+18 = -32\\j = -50$

20. Add six to both sides, then multiply both sides by 3

$\frac{1}{3} a-6=-15\\\\\frac{1}{3}a=-9\\\\a=-27$

21. Subtract 4 from both sides, then multiply both sides by 4

$\frac{1}{4}=\frac{1}{4}h+4\\\\-\frac{15}{4}=\frac{1}{4}h\\\\\\-15 = h$

22. Subtract 6.42 from both sides, then divide both sides by -10

$6.42-10d=2.5\\\\-10d=-3.92\\\\d =\frac{-3.92}{-10} \\\\d=.392$