21-4x=-71-7x

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Solution for 21-4x=-71-7x equation:



21-4x=-71-7x
We move all terms to the left:
21-4x-(-71-7x)=0
We add all the numbers together, and all the variables
-4x-(-7x-71)+21=0
We get rid of parentheses
-4x+7x+71+21=0
We add all the numbers together, and all the variables
3x+92=0
We move all terms containing x to the left, all other terms to the right
3x=-92
x=-92/3
x=-30+2/3

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