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deff fn [24]
2 years ago
11

-2x + 15 = 7 Show your work steps and the solution

Mathematics
2 answers:
natulia [17]2 years ago
6 0

Answer:

-2x+15=7

-15 -15

-2x = -8

_ _

-2 -2

answer is x=4

77julia77 [94]2 years ago
3 0

Answer:

x=6

Step-by-step explanation:

-2x+15=7

-2x=7-15

-2x=-8

x=-8/-2

x=6

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The volume of a packing box is 5 – x cubic feet. The width of the box is x feet and the length is x – 2 feet. The height is give
photoshop1234 [79]
By definition we have that the volume is given by
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4 0
3 years ago
Jackson used the process of completing the square to solve the equation 2x2−12x=−6.
Nikolay [14]

Answer:

x=3-\sqrt{6},x=3+\sqrt{6}

Step-by-step explanation:

we are given equation as

2x^2-12x=-6

Since, we have to solve it by using complete square

so, firstly we will complete square

and then we can solve for x

step-1:

Factor 2 from both sides

2(x^2-6x)=-3\times 2

step-2:

Simplify it

x^2-6x=-3

step-3:

Add both sides 3^2

x^2-6x+3^2=-3+3^2

now, we can complete square

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step-4:

Take sqrt both sides

(x-3)=-\sqrt{6},(x-3)=\sqrt{6}

step-5:

Add both sides by 3

we get

x=3-\sqrt{6},x=3+\sqrt{6}


3 0
3 years ago
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