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math question. solve for y.?
2x+y=3
can someone take me through the steps? I am so lost. :(
4 Answers
- Anonymous1 decade agoFavorite Answer
2x+y=3
subtract 2x from both sides.
2x-2x+y=3-2x
y=3-2x, or you can rewrite it in slope-intercept form as y=-2x+3
- 1 decade ago
First take the 2x off the left side by subtracting 2x from both sides. That leaves you with y=3-2x. That is your answer
- 1 decade ago
Okay, this is pretty simple once you get the hang of it.
2x+y=3
try to isolate your variable (y). Use the order of operations backwards, so you would start with addition/subtraction.
2x+y=3
-2x -2x
________
y= -2x+3
Does that help ?
- Anonymous1 decade ago
What ever you do to one side of the = you gotta do to the other.
2x+y=3
subtract 2x
y=-2x+3
