What are the rules for having variables on both sides of the equation?
-2y+5=-4y+7
i know the answer..i just cant understand why?
thx

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?