Question

Which equation, when solved, gives 8 for the value of x?

A. 5 + x + 14
B. 3 - 9 = x - 12
C. x - 2 = 3r - 4
D. -7 = # + 14

Answer 1

None of the given equations can be solved to give 8 as the value of x.

Step-by-step explanation:

To solve the equation, we need to find the value of x that makes the equation equal to 8. Let's go through each equation:

• Equation A: The equation 5 + x + 14 does not involve any variables other than x. It is not solvable for x.
• Equation B: The equation 3 - 9 = x - 12 can be simplified to -6 = x - 12. By adding 12 to both sides, we get x = 6. This equation does not satisfy the condition of x = 8.
• Equation C: The equation x - 2 = 3r - 4 involves an additional variable r. Without knowing the value of r, we cannot solve for x.
• Equation D: The equation -7 = # + 14 represents an unknown variable #. Since we do not know its value, we cannot solve for x.

Therefore, none of the given equations can be solved to give 8 as the value of x.