45x+55X=400

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Solution for 45x+55X=400 equation: 



45x+55x=400

We move all terms to the left:

45x+55x-(400)=0

We add all the numbers together, and all the variables

100x-400=0

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

100x=400

x=400/100

x=4

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