solve for x
2x-7=13
subtract 7 to both sides divide by 2 both sides
x=10..am i right?
2(10) - 7 = ?
sure enough 13 so you are right
BUT
actually you ADDED 7 to both sides
By the way that is algebra, not pre algebra :)
You're very close, but there seems to be a slight error in your calculations. Let me guide you through the steps again to solve for x in the equation 2x - 7 = 13.
Step 1: Begin with the equation 2x - 7 = 13.
Step 2: To isolate the term with x, we need to get rid of the -7 term on the left side of the equation. We can do this by adding 7 to both sides of the equation.
(2x - 7) + 7 = 13 + 7
Simplifying, we have:
2x = 20
Step 3: Now, to find the value of x, we need to get rid of the coefficient 2 in front of x. Dividing both sides of the equation by 2 will achieve this.
(2x)/2 = 20/2
Simplifying further, we get:
x = 10
So, the correct answer is x = 10. Well done!