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Luda [366]
3 years ago
9

Write the sum of -5x - 7y + 6 and -4 + 3x in standard form.

Mathematics
1 answer:
solmaris [256]3 years ago
4 0

Answer:

Step-by-step explanation:

first, you need to know what standard form is

Ax + By = C

which is basically

number(x) + number(y) = number

to put it simply..

so now we can evaluate the expression (the random mess they gave us)

-5x - 7y + 6 and -4 + 3x

we need to put em together so just toss an equal sign between em

so now we have

-5x - 7y + 6 = -4 + 3x

no combine like terms

-8x - 7y + 6 = -4

-8x - 7y = -10

and thats the answer in standard form

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Evaluate if x =3 and y = -2<br><br> x2+2xy−4y
Marysya12 [62]

Answer:

5

Step-by-step explanation:

With the equation x^2 + 2xy - 4y, we can substitute the values of x = 3 and y = -2 into the equation to find its result.

(3^2) + (2\cdot3\cdot-2) - (4\cdot-2)\\\\9 + (6\cdot-2) - (-8)\\9 - 12 + 8\\5

Hope this helped!

8 0
3 years ago
When 8 is added to the difference between nine times a number and 9​, the result is greater than 14 added to 88 times the number
larisa [96]
Is this the answer? Sorry if it’s wrong lol

4 0
3 years ago
9.
marishachu [46]

Answer:

A. -4-3x>7

Step-by-step explanation:

-4-3(-5)>7

-4-(-15)>7

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3 years ago
I have this question and I need it done bad... Help please? Picture included I was never taught matrix
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6 0
4 years ago
Given the equation y = 3x + 2 , what is the value of x when y = 8? A:2 B:4 C:6 D:9
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