how do u solve x+3=0? its very confusing.
Subtract 3 from both sides of the equation.
x + 3 = 0
x = -3
You can see how this works on this number line.
http://mrjacobmath.googlepages.com/number-line.png
-3 + 3 = 0
x = -3
All you have to say is what minus 3 will give me 0
what if i wanted to graph the equation?
how would i do that?
x = -3, y = anything at all
so
vertical line through (-3,0)
thanks damon, chopsticks and ms. sue. you helped me alot!
To solve the equation x + 3 = 0, you need to isolate the variable x on one side of the equation. Here's how you can solve it step by step:
Step 1: Start with the equation x + 3 = 0. The goal is to get rid of the 3 on the left side of the equation. Since 3 is being added to x, we can subtract 3 from both sides of the equation to maintain its balance.
x + 3 - 3 = 0 - 3
Simplifying the equation:
x + 0 = -3
x = -3
Step 2: Now, the equation x = -3 means that the variable x is equal to -3. Therefore, x = -3 is the solution to the equation x + 3 = 0.
By subtracting 3 from both sides of the equation x + 3 = 0, we were able to isolate the variable x and determine its value.