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sweet [91]
3 years ago
11

Can the coeffitient of different terms be simplified fractions multiplication

Mathematics
1 answer:
zalisa [80]3 years ago
7 0
No, it would only work with similar terms. However, you would be able to multiply them, like 2x times 2y = 4xy.
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Question 9(Multiple Choice Worth 5 points) (06.01 MC) Solve the system of equations below. x + y = 8 3x + 2y = 21 (3, 5) (5, 3)
gayaneshka [121]
<h3>Answer:  B.  (5,3)</h3>

How to get this answer:

x+y = 8 solves to y = -x+8 after isolating y. You subtract x from both sides.

Plug this into the second equation and solve for x

3x + 2y = 21

3x + 2( y ) = 21

3x + 2( -x+8 ) = 21 ... replace y with -x+8

3x - 2x + 16 = 21

x + 16 = 21

x = 21-16

x = 5

Use this to find y

y = -x+8

y = -5+8

y = 3

We have x = 5 and y = 3 pair up to get the ordered pair solution (5,3)

8 0
4 years ago
What is -10=xy+z for x?
aksik [14]
(-10= xy + z ) (-z)
(-10-z = xy ) (1/y)
-10/y - z/y = x
x = -(10+z)/y
6 0
4 years ago
A line passes through the point(-4,-6) and has a slope of 1/2 What is the<br> equation of the line?
alex41 [277]

Answer:

x-2y-8=0

Step-by-step explanation:

The equation of line is given by the relation

y-y1=m(x-x1)

where m is the slope

now, given x1=-4 and y1=-6 and the slope is 1/2.

<em>sub</em><em>stitute</em><em> </em><em>in</em><em>to</em><em> the</em><em> equation</em><em> </em><em>to</em><em> </em><em>get</em>

<em>y</em><em>+</em><em>6</em><em>=</em><em>1</em><em>/</em><em>2</em><em>(</em><em>x</em><em>+</em><em>4</em><em>)</em>

<em>mult</em><em>iplying</em><em> </em><em>through</em><em> </em><em>wi</em><em>th</em><em> </em><em>the</em><em> </em><em>L.C.M</em>

<em>whi</em><em>ch</em><em> </em><em>is</em><em> </em><em>2</em>

<em>2</em><em>(</em><em>y</em><em>+</em><em>6</em><em>)</em><em>=</em><em>1</em><em>/</em><em>2</em><em>×</em><em>2</em><em>(</em><em>x</em><em>+</em><em>4</em><em>)</em>

<em>2</em><em>y</em><em>+</em><em>1</em><em>2</em><em>=</em><em>x</em><em>+</em><em>4</em>

<em>maki</em><em>ng</em><em> </em><em>x</em><em> </em><em>the</em><em> </em><em>su</em><em>bject</em>

<em>x</em><em>=</em><em> </em><em>2</em><em>y</em><em>+</em><em>8</em><em> </em><em>hence</em><em> </em><em>the</em><em> </em><em>equation</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>li</em><em>ne</em><em> </em><em>is</em><em> </em><em>x-2y-8</em><em> </em><em>=</em><em>0</em>

4 0
3 years ago
I need help please and thank you
Ede4ka [16]

680 exponent 3. you have to multiply and divide so..... yea

3 0
3 years ago
- 8 - 7(2x + 3) = 3(1 - 10) simplified
Dmitry [639]
-15(2x + 3) = -27
5(2x + 3) = 9
10x + 15 = 9
10x = -6
x= 0.6
7 0
4 years ago
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