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Rasek [7]
3 years ago
14

X+78=3x-2 ..................

Mathematics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer:

x=40

Step-by-step explanation:

x+78=3x-2\\\mathrm{Subtract\:}78\mathrm{\:from\:both\:sides}\\x+78-78=3x-2-78\\x=3x-80\\\mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides}\\x-3x=3x-80-3x\\\\

-2x=-80\\\frac{-2x}{-2}=\frac{-80}{-2}\\x=40

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1 $40.00 shirt is on a 10% off sale rack, What is the final price of the shirt 8.25%
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Answer: 38.97

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3 years ago
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Vinvika [58]

Answer and Step-by-step explanation:

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{0,1,2,...} ⊆ W is TRUE. The set on the left is precisely what is specified in the statement for problem for W. (The bar below the subset symbol simply implies that the subset is not rigid, because the set on the left may be equal to the set on the right. Without it, the argument would be incorrect, because a strict subset needs that the two sets not be identical).

-2 ∈ W is FALSE. W's only made up of whole numbers and not their negated equivalents.

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3 years ago
Can a system of two linear equations have exactly two solutions?
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Hope this helps.
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3 years ago
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