Answer:

Step-by-step explanation:
Start with:

Combine like terms:

7 because if u add 4 and 3 that's what u end up with
Answer:

Step-by-step explanation:

We'll use rule of exponents to simplify expression.

Now, use the commutative property of multiplication.

In order to multiply power of the same base, we add their exponents.

→ Add exponents:

→ Multiply 3* -8

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