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AveGali [126]
3 years ago
9

15 - 2x = -7x How do you solve this? Plz show step-by-step if possible no picture. Thank you! :)

Mathematics
2 answers:
zhenek [66]3 years ago
8 0

Answer:

= − 3

Step-by-step explanation:

15−2x=−7x

− 2 + 15 = −7

−2+15−15=−7−15

−2=−7−15

so 1 . you rearrange the terms

     2. subtract 15 from both sides

     3 simpfly  subtract the number

Fudgin [204]3 years ago
3 0

Answer:

You will move - 2x to the other side to gather factores x with considering change the sign because the changing in side so it will became

15=2x-7x

15=-5x

To find x you need to remove its variable -5 and that happen by devided it just basic algebra

X=15/-5

X=-3

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Which of the ordered pairs in the form (x, y) is a solution of this equation?
Tju [1.3M]

Answer:

Both ordered pairs are solutions to this equation.

Step-by-step explanation:

If you plug in the x and y values given in the ordered pair, you make the left side of the equation equal the right for both pairs.

6 0
3 years ago
A Geometric series has a first term of 4 and a common ratio of 6. what formula is equivalent to the partial sum of the first n t
IRISSAK [1]
\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
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\\\\\\
S_n=4\left( \cfrac{1-6^n}{1-6} \right)\implies S_n=4\left( \cfrac{1-6^n}{-5} \right)
6 0
3 years ago
a certain brand of vitamin C contains 300 mg per tablet. A bottle contains 150 vitamins. How many total grams of vitamin C are i
LenaWriter [7]
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8 0
3 years ago
Read 2 more answers
(-3,0),(5,-2) find the slope
Mashcka [7]

Answer:

-4

Step-by-step explanation:

Point slope form: y - y = m (x - x)

5 - (-3) = m (-2 - 0)

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3 0
3 years ago
What is the measure of Arc BA? An explanation would be much appreciated.
yKpoI14uk [10]

Answer:

m<BA = 180degrees

Step-by-step explanation:

First you must know that measure of <BA is 180 degrees and m<CD = m<BA

Since <CD = 16z - 12, hence;

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z = 192/16

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m<BA = 16z - 12

m<BA = 16(12) - 12

m<BA = 192 - 12

m<BA = 180degrees

8 0
3 years ago
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