Homework Help: algebra

Posted by Lisa on Monday, October 13, 2008 at 4:58pm.

How do you solve the following equation? I know x= 20 but do not know how to show the work.

Please help...

algebra - Ms. Sue, Monday, October 13, 2008 at 5:04pm
Something is missing here.
algebra - Lisa, Monday, October 13, 2008 at 5:17pm
The equation is :

0.5(x-12) = 4

Also another problem is :

2/3 + y = 3/4
How do you divide this fraction

Thanks
algebra - Ms. Sue, Monday, October 13, 2008 at 5:29pm
0.5(x-12) = 4

Multiply by 0.5
0.5x - 6.0 = 4

Add 6.0 to both sides of the equation.
0.5x = 10

Divide both sides by 0.5
x = 20
_________________________

2/3 + y = 3/4
y = 3/4 - 2/3
y = 9/12 - 8/12
y = ??

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