Solved on Jan 24, 2024

Solve the equation x2=10x-2=10 using the addition or subtraction property of equality, then check the solution.

STEP 1

Assumptions
1. We are given the equation x2=10x - 2 = 10.
2. We will use the addition property of equality to solve for xx.
3. To check the solution, we will substitute the value of xx back into the original equation.

STEP 2

To isolate the variable xx on one side of the equation, we need to eliminate the 2-2 from the left side. We can do this by adding 22 to both sides of the equation, which is an application of the addition property of equality.
x2+2=10+2x - 2 + 2 = 10 + 2

STEP 3

Perform the addition on both sides of the equation.
x=12x = 12

STEP 4

Now we have the value of xx, but we must check our solution to ensure it is correct. We do this by substituting x=12x = 12 back into the original equation.
122=?1012 - 2 \stackrel{?}{=} 10

STEP 5

Perform the subtraction on the left side of the equation to see if it equals the right side.
10=1010 = 10

STEP 6

Since both sides of the equation are equal after the substitution, our solution x=12x = 12 is correct.
The solution set is {12}\{12\}.

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