Solve for x : 2x-15=-2x-7

Bring the x terms onto one side of the equation, and the numbers onto the other, rearranging to get 4x=8divide both sides by 4 to get x=2check answer by subbing x=2 into the equation, such that -11=-11

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Answered by Jack P. Maths tutor

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solve this simultaneous equation: 4x+ y = 12 , 2x+ y = 8


Change of subject question. Make 'a' the subject of the formula v = u + at.


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