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3 years ago

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Mathematics

1 answer:

saul85 [17]3 years ago

5 0

Answer:

1) 2019

2) 120-50=70

3) 2018

4) 100

5) 2018

6) 120-80=40

7) 2018

Step-by-step explanation:

1) 2019

2) 120-50=70

3) 2018

4) 100

5) 2018

6) 120-80=40

7) 2018

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Step-by-step explanation:

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Roman solved the equation 5a+2b=10 for a. His steps are shown below. 1. Subtract 2b: 5a+2b-2b=10-2b 2. Multiply by 5: 5a+10-2b W

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In step 2, he needed to divide both sides of the equation by 5

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we have

$5a+2b=10$

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step 2

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$a=(10-2b)/5$

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