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3 years ago

4x - 3y = -3 4x + y=17 The solution is....

1 answer:

4 0

1. Subtract the second equation from the first and solve for y: 0 - 4y = -20 => y=5
2. Substitute y=5 into one of the equations and solve for x: 4x - 3(5) = -3 => 4x = 12 => x=3

So the solution is (x, y) = (3, 5)

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4 times greater

Step-by-step explanation:

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(у-4) (3x+5y-2) How do I multiply the following expression?<br>

muminat

Answer:

$3xy + 5y^{2} - 12x - 22y + 8$

Step-by-step explanation:

You will use the FOIL method, which is very similar to the distributive property.

In order to do multiply correctly, multiply the y by 3x, 5y, and -2. You should get:

$3xy + 5y^{2} - 2y$

Then multiply the -4 by 3x, 5y, and -2 where you should get:

$- 12x - 20y + 8$

By using the foil method, you got rid of the parentheses. Now you can simply combine like terms and get your final answer:

$3xy + 5y^{2} - 12x - 22y + 8$

I hope this helps you!

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