Answer:

Step-by-step explanation:
So we have the system:

If we isolate the x-variable in the first equation:

Subtract 2y from both sides:

Divide both sides by -1:

Therefore, we would substitute the above into the second equation:

The answer is 2y+6
Further notes:
To solve for the system, distribute:

Simplify:

Subtract:

Divide:

Now, substitute this value back into the isolated equation:

You just have to multiply each number by 180 and that's how many you have of each color respectively
We will turn the left side into the right side.

Use the identity:



Now use the identity
solved for sin^2 x and for cos^2 x.




2/4 = 3/6 is true.
First, simplify the fractions:
2/4 = 1/2
3/6 = 1/2
We see that 1/2 = 1/2, so 2/4 DOES equal 3/6.