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Tobin is solving the equation 3(x - 1.25) = 11.25. His work is shown below.



What mistake did Tobin make?

a
Tobin did not make a mistake.
b
Tobin should have subtracted 3.75 from each side.
c
Tobin did not distribute the 3 correctly.
d
Tobine should have divided by 3.

Tobin is solving the equation 3x 125 1125 His work is shown below What mistake did Tobin make a Tobin did not make a mistake b Tobin should have subtracted 375 class=

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osikbro

Answer:

D

Step-by-step explanation:

If you take a look at everything up to the step before last, you can follow the train of thought and see that Tobin did everything correctly. However, when he had 3x=15 and multiplied both sides by 3, he got a ridiculous answer. If he had instead divided both sides by 3, he would have found that x=5, and not 135. Therefore, the correct answer is D.

Answer:

D. Tobin did not make a mistake

Step-by-step explanation:

i just did it on ed

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