Select all of the equations below that are equivalent to:7−n=13Use properties of equality.Multi-select Choices:(A) 7−n−2=11(B) 7−n−3=10(C) 7−n−11=2(D) 7−n−10=3
Q. Select all of the equations below that are equivalent to:7−n=13Use properties of equality.Multi-select Choices:(A) 7−n−2=11(B) 7−n−3=10(C) 7−n−11=2(D) 7−n−10=3
Manipulate Original Equation: To determine if the equations are equivalent, we can manipulate the original equation 7−n=13 using properties of equality to see if we can transform it into any of the given choices.
Check Choice (A): First, let's look at choice (A): 7−n−2=11. We can start with the original equation and subtract 2 from both sides to see if we get the equation in choice (A).7−n=13Subtract 2 from both sides:(7−n)−2=13−27−n−2=11This matches choice (A), so (A) is equivalent to the original equation.
Check Choice (B): Now, let's look at choice (B): 7−n−3=10. We can start with the original equation and subtract 3 from both sides to see if we get the equation in choice (B).7−n=13Subtract 3 from both sides:(7−n)−3=13−37−n−3=10This matches choice (B), so (B) is equivalent to the original equation.
Check Choice (C): Next, let's look at choice (C): 7−n−11=2. We can start with the original equation and subtract 11 from both sides to see if we get the equation in choice (C).7−n=13Subtract 11 from both sides:(7−n)−11=13−117−n−11=2This matches choice (C), so (C) is equivalent to the original equation.
Check Choice (D): Finally, let's look at choice (D): 7−n−10=3. We can start with the original equation and subtract 10 from both sides to see if we get the equation in choice (D).7−n=13Subtract 10 from both sides:(7−n)−10=13−107−n−10=3This matches choice (D), so (D) is equivalent to the original equation.