4(21-x)+2x=68

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Solution for 4(21-x)+2x=68 equation:



4(21-x)+2x=68
We move all terms to the left:
4(21-x)+2x-(68)=0
We add all the numbers together, and all the variables
4(-1x+21)+2x-68=0
We add all the numbers together, and all the variables
2x+4(-1x+21)-68=0
We multiply parentheses
2x-4x+84-68=0
We add all the numbers together, and all the variables
-2x+16=0
We move all terms containing x to the left, all other terms to the right
-2x=-16
x=-16/-2
x=+8

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