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-7(4+3x)=-259
We move all terms to the left:
-7(4+3x)-(-259)=0
We add all the numbers together, and all the variables
-7(3x+4)-(-259)=0
We add all the numbers together, and all the variables
-7(3x+4)+259=0
We multiply parentheses
-21x-28+259=0
We add all the numbers together, and all the variables
-21x+231=0
We move all terms containing x to the left, all other terms to the right
-21x=-231
x=-231/-21
x=+11
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