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Calculate the power $3^3$
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$2x-1\cdot 27=4x-21$
Learn how to solve equations problems step by step online. Solve the equation 2x-3^3=4x-21. Calculate the power 3^3. Multiply -1 times 27. Group the terms of the equation by moving the terms that have the variable x to the left side, and those that do not have it to the right side. Subtract the values 27 and -21.