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A is a constant. Find A such that the equation 2x + 1 = 2A + 3(x + A) has a solution at x = 2.
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A is a constant. Find A such that the equation 2x + 1 = 2A + 3(x + A) has a solution at x = 2.

User Gomad
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1 Answer

4 votes

2x + 1 = 2A + 3(x + A)

You want x=2 to be a solution.
So the equation will be a true statement when

2(2) + 1 = 2A + 3(2 + A)

4 + 1 = 2A + 6 + 3A

Combine like terms: 5 = 5A + 6

Subtract 6 from each side: -1 = 5A

Divide each side by 5: -0.2 = A


User Jeong Ho Nam
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