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3 years ago

Simplify the following expression (8x + 5y) - ( 2x -3y)

Mathematics

2 answers:

rewona [7]3 years ago

8 0

6x + 8y..........................................................................................

trapecia [35]3 years ago

4 0

For this you need to distribute the negative signs and combine like terms
8x+5y+(-1)(2z-3y)
=8x+5y+−2x+3yCombine Like Terms:=8x+5y+−2x+3y=(8x+−2x)+(5y+3y)
So then your answer would come to 6x+8y

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3 years ago

Exploring Systems of Linear Equations 2x +3y =8 and 3x+y= -2

butalik [34]

The solution of the linear equations will be ( -2, 4).

<h3>What is an equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

Given equations are:-

2x +3y = 8 and 3x+y= -2

Solving the equations by elimination method:-

2x +3y = 8

3x+y= -2

Multiply the second equation by 3 and subtract from the first equation.

2x +3y = 8

-9x -3y = 6

----------------

-7x = 14

x = -2

Out of the value of x in any one equation, we will get the value of y.

3x+y= -2

3 ( -2) + y = -2

-6 + y = -2

y = 4

The graph of the equations is also attached with the answer below.

Therefore the solution of the linear equations will be ( -2, 4).

The complete question is given below:-

Exploring Systems of Linear Equations 2x +3y =8 and 3x+y= -2. Find the value of x and y and draw a graph for the system of linear equations.

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2 years ago

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3 years ago

Please Help !!!

solong [7]

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N2 + 3 H2 = 2 NH3
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Answer:

Step-by-step explanation:

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