Question

Which method correctly solves the equation using the multiplication property of equality and the reciprocal of One-third? One-third (x + 9) = negative 12 One-third (x + 9 = negative 12. One-third x + 3 = negative 4. One-third x = negative 7. x = negative 27.

Answer 1

B i think

Explanation:

Answer 2

Explanation:

Given the equation
`(1)/(3)(x+9) = -12`

Step 1;

Expand the bracket at the right hand side of the equation to have:

`(1)/(3)x +(1)/(3)(9) = -12\\(1)/(3)x+3=-12\\subtracting\ 3\ from\ both\ sides\\(1)/(3)x+3-3=-12-3\\(1)/(3)x=-15\\`

Taking the reciprocal of both sides:

`(3)/(x) = (-1)/(15) \\ cross\ multiplying\\-x =45\\x=-45`