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3 years ago

Solve : 3x - 3 = 2x if you can show workings that would be great thank you !

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

5 0

Answer:

Step-by-step explanation:

3x-3=2x

3x-2x=3

x=3

denis23 [38]3 years ago

4 0

Answer:

x=3

Step-by-step explanation:

3x - 3 = 2x

-3x -3x

-3 = -x

The x cannot be a negative so you divide both sides by -1 and then the answer becomes x=3

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3 years ago

What is the solution for this 5|x-2| =30 X=?

evablogger [386]

Hello from MrBillDoesMath!

Answer:

x = 8, x = -4

Discussion:

5 | x - 2| = 30 => divide both sides by 5

|x -2| = 30/5 = 6 => |x-2| = 6

(x-2) = 6 => x = 2 +6

x = 8

(x-2) = -6 => x = 2 + -6

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Thank you,

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3 years ago

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3 years ago

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The sides of a polygon are 3, 5, 4, and 6. The shortest side of a similar polygon is 9. Find the ratio of their perimeters.

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Answer:

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Step-by-step explanation:

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3 years ago

What the power a when 5^a = 1/125

Advocard [28]

Answer:

a = -3

General Formulas and Concepts:

Algebra I

Solving Exponential Equations

Exponential Property [Rewrite]: $\displaystyle b^{-m} = \frac{1}{b^m}$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle 5^a = \frac{1}{125}$

Step 2: Solve for a

Rewrite: $\displaystyle 5^a = \frac{1}{5^3}$
Rewrite [Exponential Property - Rewrite]: $\displaystyle 5^a = 5^{-3}$
Set: $\displaystyle a = -3$

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2 years ago