Decide whether the given number is a solution of the given equation. See Example 7.
EXAMPLE 7 Decide whether 2 is a solution of 3x + 10 = 8x.
Solution Replace x with 2 and see if a true statement results.
Since we arrived at a true statement after replacing x with 2 and simplifying both sides of the equation, 2 is a solution of the equation.
Is6a solution of 2x + 7 = 3x?
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