Question

6) If 3x 3-3 = 31', then value of x is​

Answer 1

Step-by-step explanation:

3x+7=31

Move the 7 to the other side of the =, so X is by itself.

3x=31-7

The +7 turned into a -7 because when you move

something to the opposite side of the =, the sign becomes the opposite of what it originally was. So + to — , and — to +.

Now, we subtract.

3x=24

Here, you would divide the 3 to the whole equation. This is so you can make the X alone completely.

3x ÷ 3 = 0, but because there's an X, it would actually be just X.

24 ÷ 3 = 8

so, because the equation is still attached (just broken down up here^^, we put it into the form it was originally.

And now, our answer would be that

X = 8.

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