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3x+2(4x+3)=138
We simplify the equation to the form, which is simple to understand
3x+2(4x+3)=138
Reorder the terms in parentheses
3x+(+8x+6)=138
Remove unnecessary parentheses
+3x+8x+6=+138
We move all terms containing x to the left and all other terms to the right.
+3x+8x=+138-6
We simplify left and right side of the equation.
+11x=+132
We divide both sides of the equation by 11 to get x.
x=12
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