Select all of the equations below that are equivalent to:9=s+9Use properties of equality.Multi-select Choices:(A)9+3=s+12(B)9+6=s+13(C)19=11+s+9(D)9+8=s+15
Q. Select all of the equations below that are equivalent to:9=s+9Use properties of equality.Multi-select Choices:(A)9+3=s+12(B)9+6=s+13(C)19=11+s+9(D)9+8=s+15
Original Equation Analysis: We start with the original equation: 9=s+9. To determine if other equations are equivalent, we can simplify or manipulate the original equation using properties of equality without changing its meaning.
Choice (A) Evaluation: Let's analyze choice (A) 9+3=s+12. We can simplify both sides of the original equation by subtracting 9 from each side to isolate s: 9−9=s+9−9, which simplifies to 0=s. Now, let's apply the same operation to choice (A): 9+3−9=s+12−9, which simplifies to 3=s+3. Since 0=s, adding 3 to both sides should give us 3=s+3, which is what we have here. So, choice (A) is equivalent to the original equation.
Choice (B) Evaluation: Next, let's look at choice (B) 9+6=s+13. Using the simplified form of the original equation, 0=s, we add 6 to both sides: 0+6=s+6, which gives us 6=s+6. Now, let's apply the same operation to choice (B): 9+6−9=s+13−9, which simplifies to 6=s+4. Since 6=s+4, choice (B) is not equivalent to the original equation.
Choice (C) Evaluation: Now, let's examine choice (C) 19=11+s+9. We can simplify the right side by combining like terms: 11+s+9=s+20. Now, let's compare it to the simplified original equation, 0=s. If we add 20 to both sides of the original equation, we get 20=s+20. Since 19=20, choice (C) is not equivalent to the original equation.
Choice (D) Evaluation: Finally, let's consider choice (D) 9+8=s+15. Using the simplified form of the original equation, 0=s, we add 8 to both sides: 0+8=s+8, which gives us 8=s+8. Now, let's apply the same operation to choice (D): 9+8−9=s+15−9, which simplifies to 8=s+6. Since 8=s+6, choice (D) is not equivalent to the original equation.