Question

What value of x makes this equation true?

Answer 1

Answer:

$x=9/4=2.25$

Step-by-step 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!