Respuesta :

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2.3x+1.2=0.4x-7.1

Move 2.3x to the other side as a negative number

0.4-2.3= -1.9

1.2= -1.9x-7.1

Move negative 7.1 to the other side as a positive number

1.2+7.1= 8.3

8.3= -1.9x

Divide both sides by -1.9

8.3/-1.9 = 4.37

Therefore, x is equal to 4.37

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