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2 years ago

5(x + y) -3( x - y)=

Mathematics

2 answers:

exis [7]2 years ago

7 0

5(x + y) - 3(x - y)

5x + 5y - 3x + 3y

5x - 3x + 5y + 3y

2x + 8y

5(x + y) - 3(x - y) = 2x + 8y

faust18 [17]2 years ago

3 0

Answer:

2x+2y

Step-by-step explanation:

5(x+y) - 3(x-y)

= 5x+5y-3x-3y

=5x-3y+5y-3y

=2x+2y

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2 years ago

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Jimmy's cedar trunk is in the shape of a rectangular prism and has a volume of 3/4 cubic yard. How many cubic blocks with a side

gizmo_the_mogwai [7]

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Step-by-step explanation:

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2 years ago

PLEASE HELP PLEASE PLEASE

NNADVOKAT [17]

Answer: The value of x =2 units.

Explanation:

Since we have given that

AD= CD

BE= EA

So, we get that D and E are the mid-points of AC and AB respectively.

So, by Mid- point theorem , which states that the line joining the two midpoints is parallel to third side and it is half in length of third side i.e.

$DE=\frac{1}{2}BC$

So, we put the value of DE and BC ,

$5x-3=\frac{1}{2}\times (x+12)\\\\2(5x-3)=x+12\\\\10x-6=x+12\\\\10x-x=12+6\\\\9x=18\\\\x=\frac{18}{9}=2$

Hence, the value of x =2 units.

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