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Kruka [31]
3 years ago
11

What is the expression in simplest form? 21 - 6n + 2(2n -5 )-3n

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0
31-7 because all you have to do is add the question
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Tell whether the ordered pair (−1, 4) is a solution of the system.
lina2011 [118]

Answer:

(-1,4) is a solution to the system.

Step-by-step explanation:

For this problem, we can simply identify if this point is a solution by verifying the plugged in point values allow the left hand side to equal the right hand side.

(1) -2x - 3y = -10

 -2(-1) - 3(4) ?= -10

 2 - 12 ?= -10

 -10 == -10

(2) -3x + y = 7

 -3(-1) + (4) ?= 7

 3 + 4 ?= 7

 7 == 7

Since both equations are satisfied by this point, then we can say the point (-1,4) is a solution to the system.  Additionally, this means this is a crossing point of the system of equations.

Cheers.

6 0
3 years ago
I need help with this math problem pls
Naya [18.7K]

Answer:

It should be the third bubble, because all integers are whole numbers

6 0
4 years ago
Cost to store: $140<br><br> Markup: 25%
anastassius [24]
The actual cost to the store = $140
Percentage of markup = 25%
Amount of markup in cost = (25/100) * 140 dollars
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Then
Sell price in the store = (35 + 140) dollars
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So the sell price of the product at the store after addition of the markup price will be $175.
7 0
3 years ago
True or false? If you took a true "if-then" statement, inserted a not in clause, and reversed the clauses, the new statement wou
Helga [31]
If the statement is true, and you Rearrange it. It should still be true unless you added false facts into it.<span />
4 0
4 years ago
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All of the following are equal except
KengaRu [80]

Except what? Where is the problem?

8 0
3 years ago
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