FILL IN THE BLANKS 1) 257x=(-257) 2)(-30)x=(-270) 3)x(-21)= 4)918x=0 5)(-56)x[(-9)+(-1)]=

(c) The additive inverse of -21 is 21

Step-by-step explanation:

Required

Fill in the blanks

Represent all blanks with x

Divide both sides by 257

So:

Divide both sides by -30

So:

(c)The complete question here is to determine the additive inverse of (-21)

The of a x is -x

So:

Divide both sides by 918

So:

Solve the inner brackets

Multiply

So: