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Word Problems With 2 Unknowns - Example 1 - Free Printable

Educational worksheet: Word Problems With 2 Unknowns - Example 1. Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: Word Problems With 2 Unknowns - Example 1

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- Substitute the expression for x from equation ② into equation ①: 3(4 - 2y) + 2y = 7
- Distribute the 3: 12 - 6y + 2y = 7
- Combine like terms: 12 - 4y = 7
- Subtract 12 from both sides: -4y = -5
- Divide by -4: y = 5/4 = 1.25
- Substitute y = 1.25 into equation ②: 2x + 4(1.25) = 8
- Simplify: 2x + 5 = 8
- Subtract 5 from both sides: 2x = 3
- Divide by 2: x = 3/2 = 1.5
- The cost of a single coffee is $1.50 and the cost of a single muffin is $1.25

Parent Tip: Review the logic above to help your child master the concept of two variable word problems worksheet.

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