x -4.87x -35.39=78.21
combining x and -4.87x on the left,
-3.87x -35.39=78.21
adding -35.39 to both sides we get,
-3.87x =78.21+35.39
-3.87x =113.6
dividing both sides by -3.87, we get
Answer : x=-29.354
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