Create and solve a one-variable linear equation from a short context.
Convert units before solving a one-variable equation
Problem
A job takes \(2~\text{hours}\) plus \(x~\text{minutes}\) and totals \(150~\text{minutes}\). Convert to a common unit, write an equation, and solve for \(x\).
Big Picture
What this problem is really about
Before the time amounts can be combined, they need to use the same unit. Using one hour equals sixty minutes, we’ll convert the hour portion to minutes, then write known time plus additional time equals total time. Once the units match, a simple subtraction isolates the added minutes.
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