Equations With 2 Variables - Algebra Series

Equations With 2 Variables - Algebra Series: Learn how to solve an algebraic equation with 2 variables on one side of the equal sign. Ask me a math question on Twitter: www.twitter.com/northstar15math

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Tags:

• math
• algebra
• pre-algebra
• variables
• equations
• algebraic equations
• diy

[craftRus13]

but how about if the other variable is on the other side of the equal sign do you still do the same thing or is it different plzzz respond

[northstar15]

@craftRus13 please give me a real example with actual numbers

[vanessaprz77]

I thought a positive + negative = a positive. Is that correct? Because you have written the positive (+5) then under it you have written negative(-10) equaling to a negative(-5). How is that correct if a positive + negative = positive. I am not sure if that is correct but I am going to browse the web for the correct answer. Thank You for your video.

[northstar15]

@vanessaprz77 okay, this is very tricky, but correct. When you are adding a positive signed number to a negative one, just subtract the abs value of the larger number from the smaller one and keep the sign of the larger number, e.g., -7 + 2 = 7 - 2 = 5 = -5. If both neg and pos are together, e.g., 7 + (-2), you are still subtracting their abs values and keeping the sign of the biggest number--7 + (-2) = 7-2 = 5 = 5

[TheCettomafia]

the answer is wrong it equals -4

because quarter isnt the equation u dont write it as a fraction.