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olasank [31]
3 years ago
9

Dan spend half of his allowance going to the movies.He washed the family car and earned eight dollars.What is his weekly allowan

ce if he ended with twelve dollars?
Mathematics
1 answer:
Karolina [17]3 years ago
4 0

Answer:

8 dollars

Step-by-step explanation:

if "x" is his weekly allowance:

x-0.5x+8=12

Dan make x dollars, then he spend 0.5x dollars and he earned 8 dollars, and that is 12 dollars.

0.5x=12-8

x=8 dollars

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Hey!


The first step to solving the rest of this problem would be to distribute the parenthesis in -( 5x - 10 ).

<em>Original Equation :</em>
-( 5x - 10 )

<em>New Equation {Changed by Distributing the Parenthesis} :</em>
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Now we'll simplify the equation.

<em>Old Equation :</em>
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<em>New Equation {Simplified} :</em>
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Okay, now that that part of the equation has been changed, we can add the simplified part to our entire equation.

<em>New Equation :</em>
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Next we need to group like terms.

<em>Old Equation :</em>
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<em>New Equation {Changed by Grouping Like Terms} :</em>
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And now we add the similar elements.

<em>Old Equation :</em>
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<em>New Equation {Changed by Grouping Like Terms} :</em>
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And finally we simply add the numbers.

<em>Old Equation :</em>
-9 + 10

<em>Solution {Old Equation Solved} :</em>
1

<em>So, this means that 5x - 9 - ( 5x - 10 ) is</em>  1.

Hope this helps!


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