Question

can someone explain this is my homework
17 = –13 – 8x

Answer 1

An equation remains true if you do the same thing to both sides. Start by getting rid of the -13. To do this, add 13 to BOTH SIDES of the equation: now you have:

17 + 13 = -13 - 8x + 13

On the left side, 17 + 13 = 30. On the right side, the -13 and +13 cancel, leaving just the -8x beind.

30 = -8x

Now, we want to find a number that equals thirty when you multiply by -8. To do this, just do 30/-8 = -15/4.

So x = -15/4