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3 years ago

Please help me with this problem. (7+-12)*9. Thanks

Mathematics

1 answer:

MrRissso [65]3 years ago

5 0

Answer: -45

Step-by-step explanation: According the order of operations, or PEMDAS, we first simplify what's inside the parentheses.

So here, we have 7 + -12 which is -5.

When we are adding a negative, think of it as subtracting a positive so 7 + -12 can be changed to 7 - 12 or -5.

Now, we have (-5) (9).

Since a negative multiplied by a positive gives us a negative, -5 multiplied by 9 will give us an answer of -45.

Therefore, (7 + 12) × 9 = -45.

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