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Oliga [24]
2 years ago
6

What is -45+30-(-60)=?

Mathematics
2 answers:
Rasek [7]2 years ago
8 0

Answer:

45

Step-by-step explanation:

-45 + 30 gives you -15. When subtractinf a negative number, it actually turning into addition/positive. This changes it into -15 + 60, which is 45.

GenaCL600 [577]2 years ago
8 0

Answer: 45

Step-by-step explanation:

-45+30-(-60)=
First, times the negative 60 with the negative outside the parenthesis.

-45+30+60

60+30=90

90-45=45

Answer: 45

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Let's solve your system by substitution.

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marin [14]

Answer:

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Step-by-step explanation:

coefficient of the first term:  

2 = 2 × 1

coefficient of the last term:  

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Alternative method:

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