3 years ago

9 + 10 = nine plus ten equals?

Mathematics

1 answer:

8090 [49]3 years ago

3 0

Answer:

Step-by-step explanation:

9+10=19

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3 years ago

42=-7(z-3) what does a equals?

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Answer:

42=7(z-3)

We simplify the equation to the form, which is simple to understand

42=7(z-3)

Reorder the terms in parentheses

42=+(+7z-21)

Remove unnecessary parentheses

+42=+7z-21

We move all terms containing z to the left and all other terms to the right.

-7z=-21-42

We simplify left and right side of the equation.

-7z=-63

We divide both sides of the equation by -07 to get z.

z=9

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