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143=-4-7(3-6x)
We move all terms to the left:
143-(-4-7(3-6x))=0
We add all the numbers together, and all the variables
-(-4-7(-6x+3))+143=0
We calculate terms in parentheses: -(-4-7(-6x+3)), so:We get rid of parentheses
-4-7(-6x+3)
determiningTheFunctionDomain -7(-6x+3)-4
We multiply parentheses
42x-21-4
We add all the numbers together, and all the variables
42x-25
Back to the equation:
-(42x-25)
-42x+25+143=0
We add all the numbers together, and all the variables
-42x+168=0
We move all terms containing x to the left, all other terms to the right
-42x=-168
x=-168/-42
x=+4
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