30+x=42 I think because it's has to equal 42 and he already has 30
Hello from MrBillDoesMath!
Answer:
2(x+8) = 40
Discussion:
Rewrite the original Question as
"
Twice the (sum of a number and 8) is 40" =>
2 ( x + 8 ) = 40 =>
2 (x+8) = 40
which is the third bullet point from the top
Thank you,
MrB
Answer:
Associative Property of Addition
Step-by-step explanation:
From the list of given options, option A correctly answers the question and this is because
--- (1)
or
--- (2)
<em>The above illustrations only apply to Associative Property of Addition</em>
In Crystal's case:

This can be compared to (1) above
Hence;
<em>Option A answers the question</em>
Answer:
Symmetry is correspondence of the form and arrangement of elements or parts on opposite sides of a dividing line. imagine that this ractangle is a piece of paper, you need to fold it two times, different ways. in this case when you fold it over the horizontal colored line all colored parts will match, same case when you fold it vertically.
A.

B.

Megan's solution isn't correct.
The first mistake: she subtracted 5x from the right-hand side of the equation, but added 5x to the left-hand side.
The second mistake: she divided the right-hand side of the equation by 11, but didn't divide the left-hand side.
The correct solution: