The equation above is 2x-7=15, but how do you solve something like this. It already has the equal sign and answer, but has a variable. The object of a problem like this is to solve for the variable, find out what it means.

First, you'd add 7 to both sides of the equal sign, cancelling out the subtraction of 7. 15 would become 22.

Then, you would divide both sides by 2, getting x=11.

First, you'd add 7 to both sides of the equal sign, cancelling out the subtraction of 7. 15 would become 22.

Then, you would divide both sides by 2, getting x=11.