What's the value of x in this equation: x:6 = 12:9???

which value of x is undefined in the expression x-7/x+2. And an explanation of how to figure this out please.

Thanks to anyone who can help i really appreciate anyone who helps me with these algebra problems as they challenge me a lot.

I NEED help with my algebra hmwrk. can you help me with these? these are the only ones I cant do. Advanced Equations Be s...

Okay so these arent part of homework or anything its a review sheet for what kind of problems are gonna be on our test.its um...

Estimate the cost of painting the walls of a room that is 12 feet by 16 feet by 9 feet if 1 gallon of paint costs $11.99 and ...

So im basically screwed right now, I got to do like 5 math assignments or I basically fail algebra II, can someone help me ou...

Like how would you use it to put it into a graph or equation, or and equation/graph into the table of values? (Table of value...

the questions are y= -3x + 6 y= 2x - 5 y= 1/2 × -3 y= -2/3 × 5/2 I have no idea how to do it.. :S

Help please!!! I have no idea. First set of questions say; factorise the expressions, each has 4 as a common factor 4x +8 12-...

1. Find an equation in slope-intercept form for the line that passes through (-3,1) and (-2,-3). 2.determine the slope and y...