Johnny is solving this equation for n:8+3n=20. His first step is to subtract 8 from both sides of the equation. Why?
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Johnny is subtracting 8 from both sides of the equation to isolate the variable term, which is 3n, on the left side of the equation. This step ensures that all the terms involving n are grouped together and the constant term, which is 8, is isolated on the right side of the equation. This makes it easier to solve for n in subsequent steps.
1 answer