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weqwewe [10]
4 years ago
13

100+50x=150+30x please answer thi and thank you

Mathematics
2 answers:
Anna [14]4 years ago
4 0

Subtract 100 from both sides

50x = 150 + 30x - 100

Simplify 150 + 30x - 100 to 30x + 50

Subtract 30x from both sides

50x - 30x = 50

Simplify 50x - 30x to 20x

20x = 50

Divide both sides by 20

x = 50/20

Simplify 50/20 to 5/2

<u>x = 5/2</u>

<em>In decimal: 2.5</em>

Andru [333]4 years ago
3 0

Answer:

5/2

Step-by-step explanation:


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Step-by-step explanation:

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1 and 2 are supplementary.If m1 = (3x-17) and m2= (5x+21) find the value of x
torisob [31]

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22

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4 years ago
9x+3=3x+9<br><br>Slove for x?
IRINA_888 [86]
Let's review: 
<span><u>Inverse Operations:</u>
</span>Inverse Operations are operations which undo each other!
I'll give the following Inverse Operations in this form.

Operation -> Inverse Operation

Addition -> Subtraction
Subtraction -> Addition

Multiplication -> Division
Division -> Multiplication

That's all of them we'll need to know to solve this problem! 

9x + 3 = 3x + 9

First Step!: Move all of the variables to once side (Numbers with x in them). (Prioritize the lower one so we won't need to work with negative numbers) Subtract 3x on both sides (Subtract, because the number is positive) 

9x - 3x + 3 = 3x - 3x + 9

3x - 3x = 0 

9x - 3x + 3 = 9 

Move the 3 to the right by subtracting it on both sides. 

9x - 3x + 3 - 3 = 9 - 3

3 - 3 = 0 
9 - 3 = 6

9x - 3x = 6 

Subtract like terms. (Just like you would subtract 9 - 3). Note that they are only like terms, because they both have the same variables (x) that are the same power (1).

6x = 6 

Divide 6 on both sides to get your answer.

6x/6 = 6/6 

The 6's cancel out and we are left with 1 on the left AND right, because 6/6 = 1. 

x = 1

Plug x in to check.

9(1) + 3 = 3(1) + 9 

9 + 3 = 9 + 3 

Those are definitely equal!

I hope that helped. If it did then consider giving me the brainliest answer. Thanks.
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