Hope its right.

1. What you want to do is do is to know 2x is the ratio and x; $140,000 is the 1 brother investment and total is $1,600,000

2. Put them together 2x (140,000 + x + 2x) = 1600,000

3. 280,000 + 2x + 4x = 1600,000

4. 280,000 + 6x = 1600,000

5 1600,000-280,000= 1320,000 /6

6. They each invested $220,000

**Answer:**

**Step-by-step explanation:**

**Answer:**

-774

**Step-by-step explanation:**

calculators exist, man

**Answer:**

There are no solutions to the system because the equations represent parallel lines

**Step-by-step explanation:**

If you get a solution 0 =12

This is never true, so that means there are no solutions.

The lines are parallel.

If you get 2=2, you will have infinite solutions because they are the same line

The first one and it's written as a(-1)(n-1). The parenthesis around the n-2 are important