Question

PLEASE HELP MEEEEEEEEEEE
(2 questions)
(USA Test Prep and Quizzez)

Answer 1

1. -25

2. 2.1

Explanation:

-1/2(x + 5) = 10

divide both sides by 2.

-1(x + 5) = 20

-(x + 5) = 20

-x = 20 + 5

x = -25

k/3.5 + 7.4 = 8

2k/7 +37/5 = 8

10k = 280 - 259

10k = 21

k = 21/10 (2.1)

Answer 2

1.x=15

2.k=2.1

Explanation:

1.-1/2(x+5)=-10

-x+5/2=-10 multiply both sides by 2

-x-5=-10

-x=-20+5

-x=-15 multiply both sides by -1

x=15

2.k/3.5+7.4=8

k/3.5=8-7.4

k/3.5=0.6

multiply both sides by 3.5

k=2.1