From the description I provided to your original question, this one should be pretty straight-forward. Remember: variable terms on left, alphabetically listed; constant on right. My hint is to keep the equals symbol always stacked on top to keep the sides clear.
So only a little algebra is needed to make the 12y term "go over to the left side":
3x = 12y + 15
-12y -12y
So only a little algebra is needed to make the 12y term "go over to the left side":
3x = 12y + 15
-12y -12y
3x -12y = 15
Since it is standard to NOT have double symbols (like minus a negative, or plus a negative), I think we're good with that. Let me know if you need more explanation.
David S.
tutor
Absolutely! Great question. Since all the number-looking thingy's, as my friend likes to call them, are multiples of 3 -- they all have a GCF of 3 -- you can go ahead and divide both sides of the equation by 3 which will reduce them to what you've written. Remember the BIG CONCEPT of algebra is always to keep the balance of any equation by doing the same thing to both sides (or I guess something tips over or falls off like a see-saw, lol).
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08/20/16
Chantelle W.
08/20/16