## Multiplication Property of Equality: -1/3x=7

Simplificatation, evaluation, linear equations, linear graphs, linear inequalities, basic word problems, etc.

### Multiplication Property of Equality: -1/3x=7

The problem: -1/3x=7

My solution: 3/1*-1/3x=7/1*3/1
x=21

Is solution correct?
missingsomething

Posts: 1
Joined: Mon Jan 26, 2009 4:43 pm

missingsomething wrote:The problem: -1/3x=7

As formatted, your equation could be either of the following:

. . . . .$-\frac{1}{3x}\, =\, 7$

. . . . .$-\frac{1}{3}x\, =\, 7$

"The answer" will depend upon which form you mean. I think you mean the second form, in which case, you might want to re-check your signs:

. . . . .$\left(\frac{3}{1}\right) \left(-\frac{1}{3}\right)x\, =\, \left(\frac{3}{1}\right) \left(\frac{7}{1}\right)$

. . . . .$-x\, =\, 21$

Then complete the solution.

Eliz.

stapel_eliz

Posts: 1797
Joined: Mon Dec 08, 2008 4:22 pm