Respuesta :

Answer:

a = −bx+7x−4 over x


Step-by-step explanation:

solve for a:

7+ax−5x=3+2x−bx

add 5x to both sides:

ax−5x+7+5x=−bx+2x+3+5x

ax+7=−bx+7x+3

add -7 to both sides:

ax+7+−7=−bx+7x+3+−7

−bx+7x−4

lastly divide both sides by x.

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