Select all the posible solutions for 2x + 7 < 3x -5
-14
-23
-261
12
18
24
107

I think it is just 12 that is the correct answer if you solve the problem, but to find out all of the other numbers just plug them into the equation.

Step-by-step explanation:

By solving the equation, you get the expression x>12

The solutions that satisfy this are

18, 24, and 107

Hope this helped!

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15