x+87+x=987

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Solution for x+87+x=987 equation: 



x+87+x=987

We move all terms to the left:

x+87+x-(987)=0

We add all the numbers together, and all the variables

2x-900=0

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

2x=900

x=900/2

x=450

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