Help ASAP Select the two values of x that are roots of 7x – 15 = -2x. A. x=-5 B. x=5 C. x= -3/2 D. Question Help ASAP Select the two values of x that are roots of 7x – 15 = -2x. A. x=-5 B. x=5 C. x= -3/2 D. x=3/2 in progress 0 Math Skylar 3 weeks 2022-01-03T08:48:42+00:00 2022-01-03T08:48:42+00:00 2 Answers 0 views 0

## Answers ( )

Answer:x = 5/3Step-by-step explanation:Solve for x:

7 x – 15 = -2 x

Add 2 x to both sides:

7 x + 2 x – 15 = 2 x – 2 x

2 x – 2 x = 0:

7 x + 2 x – 15 = 0

7 x + 2 x = 9 x:

9 x – 15 = 0

Add 15 to both sides:

9 x + (15 – 15) = 15

15 – 15 = 0:

9 x = 15

Divide both sides of 9 x = 15 by 9:

(9 x)/9 = 15/9

9/9 = 1:

x = 15/9

The gcd of 15 and 9 is 3, so 15/9 = (3×5)/(3×3) = 3/3×5/3 = 5/3:

Answer: x = 5/3

7x-15=-2x

+7 +7

-15=5x

-15 divided by 5 gives yu

X=-3