A solution to an question makes the equation true.
For example a solution to the equation 3x = x + 6 is x = 3, since 3(3) = 3+6.
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the set of all values which, when substituted for unknowns, make an equation true. this is wrong
solution
TRUE
Substitute the value found back into the equation, evaluate the expressions and see if the resulting equation is true.
False. X = 3 is a vertical line.