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3 years ago

How would you simplify this -5x+2x+7y-3x

2 answers:

8 0

You can combine numbers if they have the same terms

-5x+ 2x +7y -3x

You can see that -5 , 2 , -3 is integer numbers and have same terms are x so combine them

-5x+ 2x -3x = -3x -3x = -6x

Of course 7y is not same term with -6x , x and y is different so the answer is

-6x+7y or 7y-6x is same thing

forsale [732]3 years ago

3 0

In these types of problems, the first step is to combine like terms. Like terms are terms with the same exponent (power), and the same variable (like all x's). In the above equation, we can combine -5x, 2x and -3y. Let's do it:
$-5x+2x+7y-3y = -6x+7y$

The next step would be to factor out the common ratio, which is not applicable here, so your answer would be -6x + 7y. Hope this helps!

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3 years ago

The perimeter of a rectangle is 48 in. If the length is twice

Dvinal [7]

Answer:

$\boxed{\sf Length \ of \ the \ rectangle = 16 \ in}$

Given:

Perimeter of rectangle = 48 in

Length = Twice the width

To Find:

Length of the rectangle

Step-by-step explanation:

Let width of the rectangle be 'w'.

So,

Length of the rectangle = 2w

$\sf \implies Perimeter \ of \ rectangle = 2(Length + Width \\ \\ \sf \implies 48 = 2(2w + w) \\ \\ \sf \implies 48 = 2(3w) \\ \\ \sf \implies 48 = 6w \\ \\ \sf \implies 6w = 48 \\ \\ \sf \implies \frac{ \cancel{6}w}{ \cancel{6}} = \frac{48}{6} \\ \\ \sf \implies w = \frac{48}{6} \\ \\ \sf \implies w = \frac{8 \times \cancel{6}}{ \cancel{6}} \\ \\ \sf \implies w = 8 \: in$

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4 years ago

PLEASE HELP WILL GIVE BRAINLIEST AND 5 STARS!!!!!!!!!!!!Identify the coordinates of the x- and y-intercepts of the equation.

vagabundo [1.1K]

Hey there!

Let's first find the y intercept in two ways. The first way is simply looking at the equation because it's in slope intercept, y = mx +b. In Slope intercept, b is the y intercept, therefore it is 4.

Another way is noticing that in a y intercept, x is always 0 because that's where the line crosses the y axis and there's no x value. So, if we plug in x for 0, we get y = 4.

Now for the x intercept. In an x intercept, y is zero because it's where the line crosses the x axis. Therefore, we plug in y as 0:

0 = x + 4
-4 = x

Therefore, the x intercept is (-4,0) and the y intercept is (0, 4).

Hope this helps!

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3 years ago