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Vinil7 [7]
3 years ago
14

Is -5 a solution to the equation 6x +5 = 5x + 8 + 2x? Explain.

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

No -5 is not the solution, But x =-3 is the solution.

Step-by-step explanation:

Given:

6x+5= 5x+8+2x

We need to find the solution for above equation we get;

Solution:

Now when we put the value of x =-5 we get

6x+5 =5x+8+2x\\\\6\times-5+5 = 5\times-5+8+2\times-5\\\\-30+5 = -25+8-10\\\\-25\neq -27

hence -5 is not the Solution for given equation.

On Solving the above equation we get;

6x+5 =7x+8

Now Combining the like terms we get;

7x-6x =5-8

Now Using Subtraction property we get;

x = -3

Hence The solution to equation is -3.

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3 years ago
50 apple's cost $25. How much would 75 apples cost?
8_murik_8 [283]

Answer:

$37.5

Step-by-step explanation:

(25/50) x 75 = 37.5

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8 0
3 years ago
What is the slope of this graph?​
pishuonlain [190]

Answer:

Slope = -1

Step-by-step explanation:

Since, slope of a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

Slope = \frac{y_2-y_1}{x_2-x_1}

Therefore, slope of a line passing through two points A(1, 4) and B(3, 2) will be,

Slope = \frac{4-2}{1-3}

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Therefore, slope of the line is (-1).

5 0
3 years ago
Simplify the expression:<br> X^2 (2x + 3)
Natasha2012 [34]

Answer:

<h2>2x^3+3x^2</h2>

Step-by-step explanation:

<h3>x^2(2x+3)</h3><h3 /><h3>=(x^2)(2x+3)</h3><h3 /><h3>=(x^2)(2x)+(x^2)(3)</h3><h3 /><h3>=2x^3+3x^2</h3>
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Read 2 more answers
What is special about the factored form of answer N-16x2 - 1?
Ivanshal [37]

Answer:

<em>Both 16 and 1 are squares. This suggests using the formula for the difference of squares. Answer link.</em>

Step-by-step explanation:

Every time you have a difference in the format of

A2−B2 you can factor as (A−B)(A+B).

Then you have to identify if your quantity is the difference of two squared quantities.

It is. In fact we can write it as:

16x2−1=(4x)2−12

Then we can apply our rule

{(4x)}^{2} -    {1}^{2}  = (4x - 1)(4x + 1)

6 0
3 years ago
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