Start Equation Isolation: Start with the equation −9+8w=9+10w. To isolate the variable w, we need to get all the w terms on one side and the constant terms on the other side.
Subtract 8w: Subtract 8w from both sides to move the w terms to one side.−9+8w−8w=9+10w−8wThis simplifies to:−9=9+2w
Subtract 9: Subtract 9 from both sides to move the constants to one side.−9−9=9+2w−9This simplifies to:−18=2w
Divide by 2: Divide both sides by 2 to solve for w.−18/2=2w/2This simplifies to:w=−9
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