Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible. d. The opposite of - 10t and t - 10t

The answer is t.

Step-by-step explanation:

We need to find the sum of opposite of - 10t and t - 10t.

Opposite of -10t = 10 t

So,

10t + (t-10t)

Grouping the numbers,

(10t+(-10t)) + t

= 0 + t

= t

Hence, the answer is t.

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step-by-step explanation:

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the answer is 99.