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11111nata11111 [884]
3 years ago
8

When solving an equation, why is it necessary to perform the same operation on both sides of an equal sign?

Mathematics
2 answers:
Vilka [71]3 years ago
6 0
To get the right answer you must perform the same operation on both sides of the equation because the equation will not be correct if it is not. If you subtract something from one side to make it equal you must subtract it from both sides.
Anna007 [38]3 years ago
5 0
In order to keep the equation right, both sides have to balance each other. When you only perform an operation ( I'm assuming you're talking about division or multiplication) on one side, it messes up the balance because now one side is larger than the other.
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A rectangle has a length five more than twice the width. If the perimeter is 22 units find the width and length
PtichkaEL [24]

Set the following: Length = L    Width = W

The length is twice the width:    L = 2*W     or:  W = L/2

Perimeter: P = 60ft = 2*L + 2*W

Substituting L for W in the perimeter equation gives:

P = 60ft = 2*L + 2*(L/2) = 2*L + L = 3L

L = 60ft/3 = 20ft    W=L/2=20ft/2=10ft

Verify result:  Perimeter= P = 60ft = 2L + 2W = 2*20ft +2*10ft = 40ft+20ft = 60ft

The area of the rectangular is: Area = A = Length*Width = L*W = 20ft*10ft = 200 (ft)^2

-Rosie

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3 years ago
Is it possible to form a triangle with<br> side lengths 5, 3, and 5 units?
7nadin3 [17]

Answer:

Yes

Step-by-step explanation:

Isosceles triangle with base of 3 units and sides of 5 units

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Artyom0805 [142]

Answer:0.68,0.35,0.31,0.20

Step-by-step explanation:

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jeyben [28]
So this is what i did but im not sure if its 100% correct

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PLZ HELP PLZ PLZ PLZ
Temka [501]

Answer:

The top option is false.

Step-by-step explanation:

Both segments have a <em>rate</em><em> </em><em>of</em><em> </em><em>change</em><em> </em>[<em>slope</em>] of ⅔. It just that their ratios have unique qualities:

\frac{2}{3} = \frac{4}{6}

Greatest Common Factor: 2

___ ___

<em>BC</em><em> </em>is at a 4⁄6 slope, and <em>AB</em><em> </em>is at a ⅔ slope. Although their quantities are unique, they have the exact same value.

I am joyous to assist you anytime.

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3 years ago
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