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jolli1 [7]
3 years ago
9

1. Solve 2r - 15 = -9r + 18.

Mathematics
2 answers:
cupoosta [38]3 years ago
7 0

Answer:

D

Step-by-step explanation:

11r = 33

r = 3

Phoenix [80]3 years ago
7 0

Answer

D

Step-by-step explanation:

cancel out -9r on the right side by adding it to the left side. so then you get 11r-15=18 . then add 15 to the right to get 11r by itself . you'll get 11r=33 . divide both sides by 11 and you'll get r=3 ! :)

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(11n - 3n) - n<br><br> Help plz desperate
Arlecino [84]

Answer: 7n

Step-by-step explanation:

Because....

First Remove the parentheses (a) = a

= 11n - 3n - n

Then add similar elements: 11n - 3n - n = 7n

= 7n

* Hopefully this helps:) Mark me the brainliest:)!!

~ 234483279c20~

8 0
3 years ago
Read 2 more answers
Answer questions a) and b)
Mariulka [41]

Answer:

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4 0
3 years ago
Simplify y-2/3/y+1/5
liberstina [14]

Answer:

\frac{15y-10}{15y-3}

Step-by-step explanation:

First at all, we need to use a=\frac{a}{1} to convert this expression into a fraction, like:

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Expand the fraction to get the least common denominator, like

\frac{3y}{3*1}-\frac{2}{3}

Write all numerators above the common denominator, like this:

\frac{3y-2}{3}

The bottom one used the same way to became simplest form, like this:

y+\frac{1}{5}

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\frac{5y}{5*1}+\frac{1}{5}

\frac{5y+1}{5}

And it became like this:

\frac{3y-2}{3}/\frac{5y+1}{5}

Now, we are going to simplify this complex fraction. We can use cross- multiply method to simplify this fraction.

\frac{3y-2}{3}*\frac{5y+1}{5}

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and it will becomes like this in function form:

\frac{3y-2(5)}{5y+1(3)}

Then, we should distribute 5 through the parenthesis

\frac{15y-10}{5y+1(3)}

\frac{15y-10}{15y+3}

And.... Here we go. That is the answer.

7 0
3 years ago
Help me pls only 10points
NeX [460]

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y=-7x-8

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3 0
4 years ago
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zepelin [54]

Answer:

F

Step-by-step explanation:

F

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3 years ago
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