Question

how do you solve x/7 - 8=-7
x/7= x over 7

Answer 1

x/7 - 8 = -7
x/7 = -7 + 8
x/7 = 1
x = 7

Answer 2

thanks!

Answer 3

but it;s kind of confusing

Answer 4

What is confusing?

Answer 5

why you changed 8 into a positive #

Answer 6

That is because I added 8 to both sides.
x/7 - 8 = -7
x/7 - 8 + 8 = -7 + 8
x/7 = 1
7x/7 = 7
x = 7

Answer 7

which 2 sides?

Answer 8

Both sides of the equal to (=) sign. It is like a measuring scale. When you add, subtract, multiply and divide quantities on either side of the "=" sign, you keep the equation still in balance.

Answer 9

that makes sense but what 2 side did you add 8 to?

Answer 10

x/7 - 8 is considered one side. -7 is considered the other side.

Answer 11

x/7 - 8 = -7
x/7 - 8 + 8 = -7 + 8
x/7 = 1
7x/7 = 7
x = 7

Answer 12

so you solve the first side and add it by 8 and then you add -7 by 8?

Answer 13

You are manipulating both sides at the same time. The purpose is to retain just "x" on one side and get all constants on to the other side. That is how you can find the value of "x", which is what the problem asked you to do (solve for x => find the value of x).

Answer 14

can you explain that easier? i don't understand what you are saying?

Answer 15

I am sorry, I don't know what grade you are in and who is teaching you this stuff at school. But, I can't help further.

Answer 16

i am in 8th grade

Answer 17

thanks 4 trying, but i have 2 eat soon. will you be on later?