5x+8x=128

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Solution for 5x+8x=128 equation: 



5x+8x=128

We move all terms to the left:

5x+8x-(128)=0

We add all the numbers together, and all the variables

13x-128=0

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

13x=128

x=128/13

x=9+11/13

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