Pls help me with my math hw

Question

asked Sep 2, 2020 45.0k views

1 Answer

Viraj Shah · Answer 1 · 2020-09-06T05:03:33+0000

Answer:

17. z=18

18. n=-15

19. j = -50

20. a=-27

21. h=-15

22. d=.392

Explanation:

17. Multiply both sides by 3, then subtract 6 from both sides

$(z+6)/(3)=8\\\\(z+6)/(3) * 3 = 8\\\\z+6=8*3\\z+6=24\\$

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

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

$(n-7)/(2)=-11\\\\ n-7 = -22\\\\n=-15$

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

$(j+18)/(-4)=8\\ j+18 = -32\\j = -50$

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

$(1)/(3) a-6=-15\\\\(1)/(3)a=-9\\\\a=-27$

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

$(1)/(4)=(1)/(4)h+4\\\\-(15)/(4)=(1)/(4)h\\\\\\-15 = h$

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

$6.42-10d=2.5\\\\-10d=-3.92\\\\d =(-3.92)/(-10) \\\\d=.392$