28-7x(9/9)=21

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Solution for 28-7x(9/9)=21 equation:



28-7x(9/9)=21
We move all terms to the left:
28-7x(9/9)-(21)=0
We add all the numbers together, and all the variables
-7x1+28-21=0
We add all the numbers together, and all the variables
-7x+7=0
We move all terms containing x to the left, all other terms to the right
-7x=-7
x=-7/-7
x=1

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