Answer:
9r+7r+9r
Step-by-step explanation:
Yes, it depends on what kind of model
Answer:
What ordered pair my closest answer is y = 5/2+7x/2
Step-by-step explanation:
Subtract 7x from both sides of the equation.
Answer:
Infinite solutions
Step-by-step explanation:
1) First, you can solve this easily by elimination. Multiply the first equation by -2 in order to cancel out terms when adding to the second equation.
2) Then, add the new set of equations together. However, everything cancels out, bringing us to 0 = 0. This means that the lines the equations make must be the same. Thus, all real numbers must make this equation true, meaning that there are infinite solutions.