Answer: standard form is
Ax + Bx= C
So the answer is
3x+8y=55
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Step-by-step explanation:

<h2>
Explanation:</h2>
in this problem we have the following expression:

So here:

Let's convert them as improper fractions:

Rewriting our expression:

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Simplify: brainly.com/question/10644722
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Answer: x= 3,2
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
Answer:
the third one 10 cm, 9cm 9cm
Answer:
3 hours
Step-by-step explanation:
We can solve using ratios
18 lbs 12 lbs
------------ = --------------
4.5 hrs x hours
Using cross products
18x = 12 * 4.5
18x = 54
Divide by 18
18x/18 = 54/18
x=3