2x-5+7x=3(1,4-3x)

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Solution for 2x-5+7x=3(1,4-3x) equation:



2x-5+7x=3(1.4-3x)
We move all terms to the left:
2x-5+7x-(3(1.4-3x))=0
We add all the numbers together, and all the variables
2x+7x-(3(-3x+1.4))-5=0
We add all the numbers together, and all the variables
9x-(3(-3x+1.4))-5=0
We calculate terms in parentheses: -(3(-3x+1.4)), so:
3(-3x+1.4)
We multiply parentheses
-9x+4.2
Back to the equation:
-(-9x+4.2)
We get rid of parentheses
9x+9x-4.2-5=0
We add all the numbers together, and all the variables
18x-9.2=0
We move all terms containing x to the left, all other terms to the right
18x=9.2
x=9.2/18
x=1/1.9565217391304

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