x*8+28=100

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Solution for x*8+28=100 equation: 



x*8+28=100

We move all terms to the left:

x*8+28-(100)=0

We add all the numbers together, and all the variables

x*8-72=0

Wy multiply elements

8x-72=0

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

8x=72

x=72/8

x=9

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