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x*77=100*55
We move all terms to the left:
x*77-(100*55)=0
We add all the numbers together, and all the variables
x*77-5500=0
Wy multiply elements
77x-5500=0
We move all terms containing x to the left, all other terms to the right
77x=5500
x=5500/77
x=71+3/7
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