Answer:
x=4-5/3y
Step-by-step explanation:
3x+5y=12 make x on one side
3x=12-5y divide everything by 3
x=4-5/3y
Answer: {x,y} = {2,-4}
[1] x - y = 6
[2] 2x + y = 0
Step-by-step explanation:
12.5%. there is a 1 in 8 chance that all three times it will land on heads.
<h2>
Explanation:</h2>
We use an equation to say that two things are equal. An equation always has an equal sign "=". So an equation tells us that the left side is equal to the right side. In this case, we have the following equation:

So the only value that makes this equation to be true is 5, because:

For instance, let's choose another value, say, 8. So substituting:

This is the correct answer: 3x^3 - x^2 + 6x - 9