12x-15=A(5-4x)

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Solution for 12x-15=A(5-4x) equation: 



12x-15=(5-4x)

We move all terms to the left:

12x-15-((5-4x))=0

We add all the numbers together, and all the variables

12x-((-4x+5))-15=0



We calculate terms in parentheses: -((-4x+5)), so:

(-4x+5)

We get rid of parentheses

-4x+5

Back to the equation:

-(-4x+5)



We get rid of parentheses

12x+4x-5-15=0

We add all the numbers together, and all the variables

16x-20=0

We move all terms containing x to the left, all other terms to the right

16x=20

x=20/16

x=1+1/4

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