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-21-3x/3=6(1+3x)/2
We simplify the equation to the form, which is simple to understand
-21-3x/3=6(1+3x)/2
Simplifying:
-21-1x=6*(1+3x)/2
Reorder the terms in parentheses
-21-1x=+(+6+18x)/2
Reorder the terms in parentheses
-21-1x=+(+3+9x)
Remove unnecessary parentheses
-21-1x=+3+9x
We move all terms containing x to the left and all other terms to the right.
-1x-9x=+3+21
We simplify left and right side of the equation.
-10x=+24
We divide both sides of the equation by -10 to get x.
x=-2.4
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