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So would you multiply AND add because this is a subtraction equation?

2007-06-12 17:29:16 · 6 answers · asked by Anonymous in Science & Mathematics Mathematics

6 answers

3x - y = -1
3x = -1 + y (add y both side)
3x +1 = y (add 1 both side)
then y = 3x+1

2007-06-12 17:32:38 · answer #1 · answered by PaeKm 3 · 1 0

This looks like the equation of a straight line. All you can do is simplify and you end up with:
y = 3x + 1

2007-06-12 17:33:20 · answer #2 · answered by hyped83 2 · 1 0

first you would subtract 3x from both sides of the equation leaving you with:

-y=-1-3x
then mulitiply by negative one
leaving you with
y=1+3x

2007-06-12 17:32:39 · answer #3 · answered by icemoon 2 · 1 0

y = 3x + 1 which I got by moving terms over. You can't actually solve for Y because you have two unknowns and only one equation!

2007-06-12 17:32:43 · answer #4 · answered by Icobes 2 · 2 0

simply isolate y (and make it positive)
add y to both side and add 1 to both sides. then you are left with 3x + 1 = y

2007-06-12 17:33:31 · answer #5 · answered by Anonymous · 1 0

3x-y=-1

3x-3x-y=-1-3x

-y=-1-3x
-y/-1= -1-3x/-1
y=1+3x

2007-06-12 17:58:17 · answer #6 · answered by Dave aka Spider Monkey 7 · 0 0

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