4 years ago

Pls help me. I will mark you as brainly if you help me get the correct answer.

Mathematics

2 answers:

kakasveta [241]4 years ago

7 0

Answer:

Step-by-step explanation:

9x+(5y+x)-3y

Remove the parenthesis

When there is a "+" in front of an expression in parentheses, the expression remains the same

9x+5y+x-3y

Collect like terms

(9x+x)+(5y-3y)

10x+2y

MatroZZZ [7]4 years ago

5 0

Answer:

C and D

Step-by-step explanation:

Let's add this all together.

9x + 5y + x - 3y

Combine like terms 5y + -3y and 9x + x

10x + 2y

So we know D is at least correct.

What else? C is also correct, because we can expand it outward.

10x + 5y - 3y = 10x + 2y

A and B are not correct! We can't multiply the ys or the xs.

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