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2(4-4x-9x)+3(7x+4)=5
We move all terms to the left:
2(4-4x-9x)+3(7x+4)-(5)=0
We add all the numbers together, and all the variables
2(-13x+4)+3(7x+4)-5=0
We multiply parentheses
-26x+21x+8+12-5=0
We add all the numbers together, and all the variables
-5x+15=0
We move all terms containing x to the left, all other terms to the right
-5x=-15
x=-15/-5
x=+3
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