Anna and belle are asked to solve −2x − 15 = 6x + 9. identify where one of them made an error. anna belle −2x − 15 = 6x + 9 −2x − 15 −6x = 6x + 9 −6x −8x − 15 = 9 −8x − 15 + 15 = 9 + 15 −8x = 24 negative 8x over negative 8 equals 24 over negative 8 x = −3 −2x − 15 = 6x + 9 −2x − 15 + 2x = 6x + 9 + 2x −15 = 8x + 9 −15 + 9 = 8x + 9 + 9 −6 = 8x negative 6x over 8 equals 8x over 8 negative two-thirds

Step-by-step explanation:

The given expression is

The steps Anna did are

If you look carefuly, you would notice that Anna didn't make any mistakes, her steps and result is correct.

Belle steps are

Notice that this step is wrong, because she's not adding -9 to eliminate that term.

, this step is also wrong, because 9 + 9 = 18.

Therefore, Belle is wrong.

i think it's either c or d

step-by-step explanation: the entire question is extremely odd. 04 obviously refers to the interest rate. honestly i will say the answer is c. because the (2 x 12) part would mean it's compounded semiannually. i'll say choose c.

2

step-by-2step explanation: