Solve for x
x=4
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200=0+x\times 50
Multiply 0 and 50 to get 0.
200=x\times 50
Anything plus zero gives itself.
x\times 50=200
Swap sides so that all variable terms are on the left hand side.
x=\frac{200}{50}
Divide both sides by 50.
x=4
Divide 200 by 50 to get 4.
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