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December 19, 2014

December 19, 2014

Posted by **Anonymous** on Tuesday, October 8, 2013 at 1:07pm.

Solve 2a + ab = c for a.

- Algebra 1-- Please, help me! -
**Can anyone also help me with this question?**, Tuesday, October 8, 2013 at 1:11pmSolve 2s - k = 11 for k?

- Algebra 1-- Please, help me! -
**Anonymous**, Tuesday, October 8, 2013 at 1:14pm-3y = -2x + 9

y = -2/-3x - 3

Try the others now.

- Algebra 1-- Please, help me! -
**Can anyone also help me with this question?**, Tuesday, October 8, 2013 at 1:19pmI have but I don't remeber how.

- Algebra 1-- Please, help me! -
**Ms. Sue**, Tuesday, October 8, 2013 at 1:20pmDo it the same way.

- Algebra 1-- Please, help me! -
**Reiny**, Tuesday, October 8, 2013 at 1:21pmTo solve any linear equation in x and y for y takes 2 steps

1. move all terms except the y term to the right

-3y = -2x + 9

2. divide each term by the coefficient of the y term

y = (-2/-3)x + 9/-3

y = (2/3)x - 3

- Algebra 1-- Please, help me! -
**Can anyone also help me with this question?**, Tuesday, October 8, 2013 at 1:23pmCan anyone provide the steps of solving these equations? I am truly struggling.

- Algebra 1-- Please, help me! -
**Ms. Sue**, Tuesday, October 8, 2013 at 1:25pmReiny gave you these steps.

- Algebra 1-- Please, help me! -
**Can anyone also help me with this question?**, Tuesday, October 8, 2013 at 1:26pmI don't understand what steps must be taken in order to solve the other equations.

- Algebra 1-- Please, help me! -
**Can anyone also help me with this question?**, Tuesday, October 8, 2013 at 1:27pmI know it is the same process but I an still very confused.

- Algebra 1-- Please, help me! -
**Anonymous**, Tuesday, October 8, 2013 at 1:29pm2x - 3y = 9

Subtract 2x from both sides. Now, you want this in the form of y = mx + b. So, I will write this as -3y = -2x (since you subtract) + 9 (since we know 9 is positive).

-3y = -2x + 9

Now, divide all terms by -3.

y = -2/-3x (or 2/3x like Reiny showed) - 3 (because 9 / -3 = -3)

y = 2/3x - 3

- Algebra 1-- Please, help me! -
**Can anyone also help me with this question?**, Tuesday, October 8, 2013 at 1:36pmI already know this. I was referring to the other equations.

- Algebra 1-- Please, help me! -
**Anonymous**, Tuesday, October 8, 2013 at 1:45pm2a + ab = c

a (2 + b) = c

Divide both sides by 2+b.

a = c /(2+b)

I'm not sure on the other one.

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