Is 6x+4x-6=24+9x a identity, a contradiction, or neither.
Ty I will give you the brainliest!

(A)6x+4x-6=24+9x

10x-6=24+9x

10x-9x=24+6

x=30.     (only 1 solution)

(B)25-4x = 15-3x+10-x

25-4x = 5-4x

25-5 = 4x-4x

30 = 0        (No solution)

(C)4x+8 = 2x+7+2x-20

4x+8 = 4x -13

4x-4x = -13-8

0 = -21       (No solution)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

nope.   happens to me as well.

-aparri