What equation has been incorrectly solved. -4(6-b)=4
-24-4v=4
-4b=28
b= -7
a. what error was made?

b. why is the correct solution

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.