Solve multi-step linear equations, including equations requiring simplification first.
Solve a multi-step context equation
Problem
\(\text{Four}~\text{identical}~\text{snack}~\text{packs}\) each contain \(x~\text{granola}~\text{bars}\) and \(2~\text{juice}~\text{boxes}\), for \(28~\text{items}\) total. How many granola bars are in each pack?
Big Picture
What this problem is really about
Model one pack as a grouped quantity containing the unknown granola bars and two juice boxes. Four identical packs repeat that entire group to make twenty-eight items. Divide first to recover one pack's total contents, then remove the two known juice boxes to isolate the granola-bar count per pack.
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