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3 years ago

What is the solution to this equation? 4x + 2(x + 6) = 36

Mathematics

2 answers:

Illusion [34]3 years ago

7 0

Answer:

x=4

Step-by-step explanation:

4x+2(x+6)=36

distribute the 2

4x+2x+12=36

combine like variables

6x+12=36

subtract 12

6x=24

divide by 6

x=4

leonid [27]3 years ago

4 0

Answer:6x+12=36

Step-by-step explanation:

6x+1

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19 6/7 divided by 4 1/8

anygoal [31]

4 $\frac{188}{231}$
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3 years ago

What is the value of the rational expression 2x^2+5x+9/x^2+2x-1 when x=-2

Sergio039 [100]

Answer:

The value of the Rational expression when $x=-2$ is: $-7$

Step-by-step explanation:

For this exercise is important to remember:

When a negative number is raised to an even power, the result will be positive.
The multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-$

Then, given the following Rational expression:

$\frac{2x^2+5x+9}{x^2+2x-1}$

You need to follow these steps in order to find its value when $x=-2$ :

1. Substitute the given value of "x" ( $x=2$ ) into the expression:

$\frac{2(-2)^2+5(-2)+9}{(-2)^2+2(-2)-1}$

2. Evaluate and simplify:

$\frac{2(4)+5(-2)+9}{4+2(-2)-1}=\frac{8-10+9}{4-4-1}=\frac{7}{-1}=-7$

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3 years ago

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5 hours 15 min + 3 hours 33 min show the working as well

Alika [10]

Answer:

8 hours 48 mins

Step-by-step explanation:

h m

5:15

+3:33

--------------

8:48

5 hours + 3 hours =8 hours,

15 mins + 33 mins = 48 mins

Therefore, it's 8 hours 48 mins.

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EastWind [94]

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Answer:

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Step-by-step explanation:

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