Lacey, because you have to do the opposite when you want to get rid of a number. She subtracted 20 because it was originally positive 20. Chris messed up and did not do the opposite, subtraction, and instead he added 20

4 0

3 years ago

Read 2 more answers

Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 5 salamanders, 3 crayfish, an

Scrat [10]

5/20 but if you were to simplify it then 1/4

8 0

3 years ago

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Our class made 63 snowflakes to decorate our room. We put 38 snowflakes on the window. Then we put 15 snowflakes on the door. Ho

never [62]

10, 38+15=53 63-53=10

5 0

3 years ago

10+z=x what is the answer

Basile [38]

First you had subtract by ten from both sides of equation form.

$10+z-10=x-10$

Then simplify by equation.

$z=x-10$

Final answer: $\boxed{z=x-10}$

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

8 0

3 years ago