Learn with Mentor · 8 min
Solve Multi-Step Equations
Solve an equation containing brackets by treating the bracketed expression as a single unit before dividing it out.
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A bracket as one piece
An equation like 10(x + 3) − 18 = 72 has a bracketed expression multiplied by a number. Rather than expanding the bracket first, it's often simplest to treat the whole bracket as a single unknown chunk.