Answer: For the first question ( 0.25(x+4)-3=28) the answer is x=120. How did I found out the answer? I Isolate the variable by dividing each side by factors that don't contain the variable.
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The second one is x=6. Isolate the variable by dividing each side by factors that don't contain the variable.
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The correct answer for the last one is x=21. Solve for x by simplifying both sides of the equation, then isolating the variable.
