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noname [10]
3 years ago
14

Simplify 3(x+2)+5x-7 with steps... I am in 7th grade... Will give the brainliest!

Mathematics
2 answers:
Fynjy0 [20]3 years ago
7 0
Hey there,
3 (x + 2) + 5x - 7
3x + 6 + 5x - 7
3x + 5x + 6 -7
8 x - 1

Hope this helps :))

<em>~Top♥</em>
Virty [35]3 years ago
3 0
First expand the 3(x+2) bracket by multiplying out to give you 3x+6
Now, you have a full expression:
3x+6+5x-7
Collect like terms:
3x+5x=8x
6-7=-1
8x-1 is the answer simplified
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3 years ago
Eeeek help, I don’t exactly know how to calculate the width of the missing shape!
Anuta_ua [19.1K]

Answer:

Perimeter = 101.2 cm

Step-by-step explanation:

The given figure has a length of 18 cm and width of 24 cm.  A rectangle of length 8.6cm has been cut out, however, the question is asking to find the perimeter, or distance around the figure.  The overall rectangle still has a perimeter of 18 + 18 + 24 + 24 = 84. However, now it also has two additional sides of 8.6cm each, so 8.6 + 8.6 = 17.2.  

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8 0
3 years ago
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borishaifa [10]

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Further we know that Sterre charged $7,245 and made a donation of $1,242 this year for the tax returns she filed.

Let x be the number of free income tax returns and y be the number of $35 income tax returns.

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