200=120(1+0.05x)

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Solution for 200=120(1+0.05x) equation:



200=120(1+0.05x)
We move all terms to the left:
200-(120(1+0.05x))=0
We add all the numbers together, and all the variables
-(120(0.05x+1))+200=0
We calculate terms in parentheses: -(120(0.05x+1)), so:
120(0.05x+1)
We multiply parentheses
0x+120
We add all the numbers together, and all the variables
x+120
Back to the equation:
-(x+120)
We get rid of parentheses
-x-120+200=0
We add all the numbers together, and all the variables
-1x+80=0
We move all terms containing x to the left, all other terms to the right
-x=-80
x=-80/-1
x=+80

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