Respuesta :

Answer:

7

Step-by-step explanation:

this is because 10-8 is 2 and 9-7 is also 2

Answer:

it's 7

Let's solve your equation step-by-step.

10−8=9−x

Step 1: Simplify both sides of the equation.

10−8=9−x

10+−8=9+−x

(10+−8)=−x+9(Combine Like Terms)

2=−x+9

2=−x+9

Step 2: Flip the equation.

−x+9=2

Step 3: Subtract 9 from both sides.

−x+9−9=2−9

−x=−7

Step 4: Divide both sides by -1.

−x

−1

=

−7

−1

x=7

Answer:

x=7