55+(-72)-(-45)=x

what is x?

x=28

Step-by-step explanation:

55−72−(−45)=x

Step 1: Simplify both sides of the equation.

55−72−(−45)=x

55+−72+45=x

(55+−72+45)=x(Combine Like Terms)

28=x

28=x

Step 2: Flip the equation.

x=28

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there are two angles that are alternate interior angle with angle 9

the angle 15 and angle 7 are alternate interior angle with angle 9.

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the answer is d. 75%