# Algebra1 homework. Solving y in terms for x?

Topic: Algebra1 homework. Solving y in terms for x?
June 26, 2019 / By Zowie
Question: So my teacher Mrs. Cuneo teaches my 8th grade algebra1 class. On homework she want us to show our work on everything. The problem says, Solve each equation for y in terms of x. x+y=5. The answer was y=-x=5. I got that by going to this website and typing in the problem. It gave me the answer but I need the steps. Can you show me how to solve it and show my work? If I learn that I'll be able to do the rest of my worksheet. Another problem was -3x+y=-2. The answer? y=3x-2. Thanks

## Best Answers: Algebra1 homework. Solving y in terms for x?

Sherri | 8 days ago
For the problem x+y=5, the answer should be y=-x+5 or y=5-x You get this by subtracting x from both sides to isolate the variable. The work will look like this. x+y=5 -x -x y=5-x For your other problem, -3x+y=-2, you want to add 3x to isolate the variable (y). You add in this case because you have a -3x. -3x+y=2 +3x +3x y=3x-2 Hope this helps!
👍 244 | 👎 8
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Penney
Understand that when you are solving for Y in terms of X, you are trying to manipulate the eq in such a way that Y is alone on the left side and all other terms are on the right side i.e.: y = all other numbers, x's etc. So -3x + y = -2. add a positive 3x to both sides. You are doing this because you need a way to eliminate the -3x on the left side and add it to the right side and to do that you add the opposite term to both sides in this case you will add a positive 3x. 3x - 3x + y = -2 +3x --> 0 + y = -2 + 3x you don’t have to do anything with the negative 2 since it is already on the right side. Anyway, I hope you see why -3x became 3x.
👍 100 | 👎 0

Marjeta
I am sure that your teacher would explain this. However , equations are all about doing the same thing to each side so that you finish up with the x or y at one side of the equation. Qu 1 x + y = 5--------------Now subtract x from both sides x + y - x = 5 - x x - x + y = 5 - x y = 5 - x Qu 2 - 3x + y = - 2----------------Now Add 3x to both sides - 3x + y + 3x = - 2 + 3x 3x - 3x + y = 3x - 2 y = 3x - 2
👍 93 | 👎 -8

Kristy
Remember that what you do one side, you do the other, and that you want y by itself. Logically, what you do is to subtract x (on the first problem) from both sides. x+y=5 x+y-x=5-x y=5-x (or y=-x+5) -3x+y=-2 -3x+y+3x=-2+3x y=-2+3x (or y=3x-2)
👍 86 | 👎 -16

Jeanna
Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1y' to each side of the equation. x + y + -1y = 5 + -1y Combine like terms: y + -1y = 0 x + 0 = 5 + -1y x = 5 + -1y Simplifying x = 5 + -1y
👍 79 | 👎 -24

Originally Answered: equation homework help (solving equations) :(?