Wednesday

April 23, 2014

April 23, 2014

Posted by **mysterychicken** on Tuesday, May 5, 2009 at 3:56pm.

Solve the equation for y in terms of x

1.2x + 7= y

2. x- 2/3y= 3

3.-12x + 3y = 48

Give any three ordered pairs that are solutions of the equation

4. -1/4y - x =0

5. 5x - y= -5

-MC

- Pre-Algebra -
**Riley**, Tuesday, May 5, 2009 at 9:33pmto solve for y in terms of y just set the equation equal to y. Then divide everything by the coefficiant of y.

#1) 2x+7=y (already correct)

#2) x-(2/3)y=3

x-3=(2/3)y (move y by itself)

(x-3)/(2/3)=y (divide by 2/3)

-->(3x-9)/2=y (simplify)

- Pre-Algebra -
**RickP**, Tuesday, May 5, 2009 at 11:52pm-12x + 3y = 48

add 12x to both sides

3y = 12x + 48

divide all terms by 3

y = 4x + 16

------------------------------

-1/4y - x = 0

start as above: solve for y

add x to both sides

-1/4y = x

multiply all terms by -4

y = -4x

Now plug in 3 values for x (such as -1, 0, and 1) and find the value for y for each. The three resulting (x,y) pairs are ordered pairs.

**Related Questions**

Pre-Algebra [urgent!] - I can't find the solution to this problem; can someone ...

Pre-Algebra [repost ] - I need help on these three questions BEFORE 10:00 PM. ...

pre algebra - please show me step by step how to solve the following equation -...

algebra - solve by using the quadratic formula prove your answer is correct by ...

pre algebra - solve the equation step by step.list each step along with the ...

math/algebra - solve each of the following systems by substitution. 16) 5x -2y...

algebra - how do you figure this equation step by step 4x-3y=11 2x+3y=13

Algebra - Debbie finished her algebra test early so she decided to check each of...

Pre-Algebra - Can someone show me how to solve this problem step by step?Here is...

Algebra - Can someone show me step by step how to do this problem to have an ...