We solve for \(x\) by adding 7 on both sides of the equation:Īfter dividing by \(2,\) we obtain the answer \(x=8\) Solution: Adding 9 to a number is written as \(x+9,\) while subtracting 7 from three times the number is written as \(3 x-7\). Find the number.ĭividing both sides by 4 gives the answer: \(x=3\).Į) Adding nine to a number gives the same result as subtracting seven from three times the number. 9 = 3x\nonumber\]ĭ) Multiply an unknown number by five is equal to adding twelve to the unknown number.
