Saturday

February 28, 2015

February 28, 2015

Posted by **Anonymous** on Wednesday, October 7, 2009 at 4:29pm.

2y+5x=-6

My question is do I add -5x to both sides first?? how do I start this problem?

- algebra -
**jim**, Wednesday, October 7, 2009 at 5:54pmWhen you have an equation with just x and y terms, you're looking at a straight line.

One way to approach is it, as you say, to add -5 to both sides, and then divide across by 2, so that the LHS just contains y on its own. Then you have it in the form y = mx + c, and you can just read off the y-intercept as c.

Another way to find the y-intercept is to set x=0, and see what you're left with:

2y+5x=-6

2y+0 = -6

y=-3

So the point (0,-3) is on the line, and is the y-intercept.

You also want to graph it. Since it's a straight line, you just need two points, then draw the line with a ruler.

Let's get the x-intercept as our other point:

2y+5x=-6

0+5x=-6

x=-6/5

So (-6/5,0) is tyhe x-intercept, and the second point we need for drawing the line.

- algebra -
**jim**, Wednesday, October 7, 2009 at 5:59pmOops, typo. In case you're confused, I meant "One way to approach it is, as you say, to add -5x to both sides..."

**Answer this Question**

**Related Questions**

algebra - graph the equation and find the y-intercept. 2y+5x=-6 My question is ...

Help 5!!! - 5. Find the x and y intercepts of each linear equation. Be sure to ...

ALGEBRA - I believe this answer to be correct. Just need to know. -13<= 4x-2&...

Algebra - Question 1 Solve using the multiplication principle then graph. -15>...

algebra--distributive - how would you do this prob. negative4-(5y+6) = negative ...

science - rearrange this equation 2 make x the subect. 6y = 9 - 3x so first i ...

Algebra - I am re posting this for fear that it was overlooked earlier. I have ...

algebra - could someone check my answers to these few questions? "What is the ...

Algebra - 89. Solve for x in the equation: 6/7x - 6 = -2 I posted this before, ...

maths - i have to make y the subject of this equation: 4t + 7y - 9 = 0 wod it be...