x*2+x-210=0

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Solution for x*2+x-210=0 equation: 



x*2+x-210=0

We add all the numbers together, and all the variables

x+x*2-210=0

Wy multiply elements

x+2x-210=0

We add all the numbers together, and all the variables

3x-210=0

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

3x=210

x=210/3

x=70

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