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We simplify this expression paying attention to the order of operations which states that exponentiation comes before multiplication and division, and before addition and subtraction, and that parentheses precede all of them.
Therefore, we start by performing the multiplication within parentheses, then we carry out the division operation, and we finish by performing the subtraction operation:
Therefore, the correct answer is option C.
7.5
\( 94+12+6= \)
Parentheses always come first in PEMDAS! They tell you which operation to prioritize. In , you must calculate before dividing.
The colon (:) means division, just like the ÷ symbol. So is the same as .
When the numerator is smaller than the denominator, you get a decimal! . Think of it as half.
No! You must follow PEMDAS order, not reading order. Working left to right gives wrong answers. Always do parentheses first, then multiplication/division, then addition/subtraction.
Check your steps! Common errors: forgetting parentheses give , or calculating first. Follow PEMDAS carefully and work step by step.
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