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Vilka [71]
3 years ago
13

Which expression is equivalent to 8 times d times d

Mathematics
1 answer:
sveticcg [70]3 years ago
4 0

Answer:

That is, they are equivalent expressions. Two expressions are said to be equivalent if they have the same value irrespective of the value of the variable(s) in them. Example 1: Are the two expressions 2y+5y−5+8 and 7y+3 equivalent?

Step-by-step explanation:

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X = – 2y – 1<br> x = – 5y + 5
motikmotik

Answer:

x = -5

y = 2

Step-by-step explanation:

x = – 2y – 1

= -x - 2y - 1

-x - 2y = 1

x = – 5y + 5

= -x - 5y + 5

-x - 5y = -5

-x - 2y = 1

-x - 5y = -5

___________--

3y = 6

y = 6/3

<u>y = 2</u>

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-x - 2(2) = 1

-x - 4 = 1

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<u>x = -5</u>

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