Question

For which equation would x = 12 be a solution?12 - x = 448 ÷ x = 12x + 4 = 1212 x = 144

Answer 1

We need to determine which of the given equations has solution x = 12.

We can do so by replacing x with 12 on the left side of an equation and comparing the result to the right side. If they are equal, then x = 12 will be a solution to that equation.

We have:

`12-12=0\\e4`
`48/12=4\\e12`
`12+4=16\\e12`
`12(12)=144`

Therefore, x = 12 is a solution to the last equation.

Answer: 12 x = 144