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expeople1 [14]
3 years ago
5

Solve the equation : 3x - 2 = 4x + 5How many solutions are there?​

Mathematics
2 answers:
Nookie1986 [14]3 years ago
8 0

Answer:

one solution

Step-by-step explanation:

Given

3x - 2 = 4x + 5 ( subtract 4x from both sides )

- x - 2 = 5 ( add 2 to both sides )

- x = 7 ( multiply both sides by - 1 )

x = - 7 ← the one solution

VARVARA [1.3K]3 years ago
4 0

Answer:

<h2>one solution, x = -7</h2>

Step-by-step explanation:

3x-2=4x+5\qquad\text{add 2 to both sides}\\\\3x-2+2=4x+5+2\\\\3x=4x+7\qquad\text{subtract}\ 4x\ \text{from both sides}\\\\3x-4x=4x-4x+7\\\\-x=7\qquad\text{change the signs}\\\\x=-7

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Step-by-step explanation:

The square root of a number is a number that you can square to get it, that is, a number that you can multiply by itself to get the number. So, 2 is a square root of 4, because 2 x 2 = 4, and 3 is a square root of 9, because 3 x 2 = 9.

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2 years ago
A piece of paper is 11 inches long and 8.5 inches wide. What is the area of the paper in square centimeters? (Please show work!)
goldenfox [79]
If you would like to know what is the area of the paper in square centimeters, you can calculate this using the following steps:

1 inch equals to 2.54 centimeters.

11 inches = 11 * 2.54 = <span>27.94 centimeters long
8.5 inches = 8.5 * 2.54 = </span><span>21.59 centimeters wide

11 inches long * 8.5 inches wide = 27.94 centimeters long * 21.59 centimeters wide = </span>27.94 * 21.59 = 603.22 square centimeters
<span>
The correct result would be </span>603.22 square centimeters.<span>
</span>
3 0
2 years ago
colleen is making a belt but she wants it to be 3/5 as long than the directions indicate.The directions state that she needs a l
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3 0
3 years ago
Here is a five-sided polygon. Describe or show the strategy you would use to find its area. Mark up and label the diagram to sho
MrRissso [65]

Answer:

i can explai it to u if u wan to get the answer

Step-by-step explanation:

Divide the polygon into 5 triangles by using each side as a base and joining the vertices of the polygon to a common point (for example, the centre). If the polygon is regular the angle at the vertex of each triangle is 360/5=72 degrees, so you have 5 isosceles triangles of equal area. Find the area of one and multiply by 5 to get the total area.multiply 5 times the lenght of oneside

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