Question

What value of x makes this equation true?

Answer 1

`x=9/4=2.25`

Explanation:

The model is essentially saying:

`3(-x)+10(1)=5(x)+8(-1)`

Simplify:

`-3x+10=5x-8`

Subtract 5x from both sides:

`-8x+10=-8`

Subtract 10 from both sides:

`-8x=-18`

Divide both sides by -8. The negatives cancel:

`x=18/8`

Reduce:

`x=9/4=2.25`

And we're done!