3X+4y=42.50

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Solution for 3X+4y=42.50 equation: 



3X+4X=42.50

We move all terms to the left:

3X+4X-(42.50)=0

We add all the numbers together, and all the variables

3X+4X-(42.5)=0

We add all the numbers together, and all the variables

7X-42.5=0

We move all terms containing X to the left, all other terms to the right

7X=42.5

X=42.5/7

X=6+0.5/7

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