Solve for x_5
x_{5}=0
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6x_{5}+210=210
Swap sides so that all variable terms are on the left hand side.
6x_{5}=210-210
Subtract 210 from both sides.
6x_{5}=0
Subtract 210 from 210 to get 0.
x_{5}=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 6 is not equal to 0, x_{5} must be equal to 0.
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