Q. How many solutions does this equation have?−2d+9=−2dChoices:(A)no solution(B)one solution(C)infinitely many solutions
Analyze the equation: Analyze the equation −2d+9=−2d to see if there are any like terms that can be combined or canceled out.−2d+9=−2dSubtract −2d from both sides to isolate the constant term.−2d+9−(−2d)=−2d−(−2d)
Subtract to isolate constant: Simplify both sides of the equation after subtracting −2d. 9=0This simplification is incorrect because subtracting −2d from both sides should cancel out the −2d terms, not result in 9=0.
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