Here's how to solve this equation 2x-7=15. I mean it gives you the answer but how do we find the value of X. Weel in this blog we are going to solve this problem. First off we have to do the opposite of what it says. Like it says to subtract 7 so instead we are going to add 7. So we add seven to both sides, so -7+7 = 0 and 15 +7 = 22. So now the equation is 2x = 22 so now all we have to do is the opposite. 

So instead of multiplying 2 we have to divide by 2. So 22 /2 equals 11. So the equation will now be x=11. So now that we have solved the problem all we need to do is double check and make sure that it is correct. So replace the x with 11 and we get 2 times 11 -7 equals 15. So if I did my math correct then the answer is right. Now that you know how to do t you try this on future problems and I will see you guys later. 



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    Joshua

    The blogs are about the lessons and activities I've done in math class.